BRASA CR ← Education, World Wide

PhET Interactive Simulations

510 courses · 16 levels

Free interactive simulations for math and science from the University of Colorado Boulder. Learners build intuition by experimenting in virtual labs across physics, chemistry, biology, and math. Constructivist pedagogy: understanding through play and discovery.

PhET — Mechanics & Motion

Forces and Motion: Basics — Net Force
Tug. Pull. Apply.
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Forces and Motion: Basics — Motion
Push. Move. Apply.
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Forces and Motion: Basics — Friction
Friction. Apply. Use.
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Forces and Motion: Basics — Acceleration
Accel. Apply. Use.
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Forces and Motion — Tug of War
Tug. Force. Apply.
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Forces and Motion — Motion
Motion. Apply. Use.
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Forces and Motion — Friction
Friction. Apply. Use.
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Forces and Motion — Acceleration Lab
Accel. Lab. Apply.
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Projectile Motion — Intro
Project. Launch. Apply.
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Projectile Motion — Vectors
Vector. Component. Apply.
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Projectile Motion — Drag
Drag. Air. Apply.
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Projectile Motion — Lab
Lab. Custom. Apply.
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Projectile Data Lab — Sources
Source. Variable. Apply.
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Projectile Data Lab — Measures
Measure. Stat. Apply.
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Projectile Data Lab — Sampling
Sample. Distribute. Apply.
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Pendulum Lab — Intro
Pendulum. Swing. Apply.
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Pendulum Lab — Energy
Energy. Swing. Apply.
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Pendulum Lab — Lab
Lab. Custom. Apply.
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Masses and Springs — Intro
Spring. Mass. Apply.
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Masses and Springs — Vectors
Vector. Force. Apply.
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Masses and Springs — Energy
Energy. Spring. Apply.
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Masses and Springs — Lab
Lab. Custom. Apply.
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Masses and Springs: Basics — Stretch
Stretch. Apply. Use.
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Masses and Springs: Basics — Bounce
Bounce. Apply. Use.
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Hooke\
Hooke. Spring. Apply.
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Hooke\
System. Spring. Apply.
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Hooke\
Energy. Hooke. Apply.
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Hooke\
Lab. Hooke. Apply.
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Vector Addition — Explore 1D
1D. Vector. Apply.
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Vector Addition — Explore 2D
2D. Vector. Apply.
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Vector Addition — Equations
Equation. Vector. Apply.
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Vector Addition — Lab
Lab. Vector. Apply.
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Buoyancy — Intro
Buoy. Float. Apply.
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Buoyancy — Compare
Compare. Buoy. Apply.
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Buoyancy — Mystery
Mystery. Density. Apply.
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Buoyancy — Lab
Lab. Buoy. Apply.
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Buoyancy: Basics — Explore
Explore. Float. Apply.
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Buoyancy: Basics — Compare
Compare. Apply. Use.
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Density
Mass. Volume. Apply.
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Under Pressure — Intro
Pressure. Depth. Apply.
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Under Pressure — Pool Cubes
Pool. Cube. Apply.
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Under Pressure — Mystery Pressure
Mystery. Pressure. Apply.
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Under Pressure — Lab
Lab. Pressure. Apply.
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Fluid Pressure and Flow — Pressure
Pressure. Fluid. Apply.
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Fluid Pressure and Flow — Flow
Flow. Fluid. Apply.
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Fluid Pressure and Flow — Water Tower
Tower. Pressure. Apply.
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The Moving Man
Position. Velocity. Apply.
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Friction
Friction. Heat. Apply.
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Ramp: Forces and Motion
Ramp. Force. Apply.
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Motion in 2D
2D. Motion. Apply.
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Self-Driving Demolition Derby
Self. Drive. Apply.
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Lunar Lander
Lunar. Land. Apply.
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Atwood Machine
Atwood. Pulley. Apply.
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Plate Tectonics — Intro
Plate. Tectonic. Apply.
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Plate Tectonics — Crust
Crust. Layer. Apply.
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Plate Tectonics — Plate Boundaries
Boundary. Plate. Apply.
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Forces in 1 Dimension
Force. 1D. Apply.
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Newton\
Newton. Cradle. Apply.
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The Ramp (Java legacy)
Ramp. Java. Apply.
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Bumper Cars — 1D Collisions
Bumper. 1D. Apply.
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Bumper Cars — 2D Collisions
Bumper. 2D. Apply.
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Center of Mass
Center. Mass. Apply.
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Torque
Torque. Lever. Apply.
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Rotational Motion
Rotate. Motion. Apply.
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Moment of Inertia
Moment. Inertia. Apply.
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Balancing Act — Intro
Balance. Lever. Apply.
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Balancing Act — Balance Lab
Lab. Balance. Apply.
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Balancing Act — Game
Game. Balance. Apply.
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Free Body Diagrams Sim
FBD. Force. Apply.
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Spring-Mass Oscillator
Oscillate. Spring. Apply.
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Conservation of Momentum
Momentum. Conserve. Apply.
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Terminal Velocity
Terminal. Velocity. Apply.
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PhET — Energy, Waves & Sound

Energy Skate Park — Intro
Skate. Energy. Apply.
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Energy Skate Park — Friction
Friction. Skate. Apply.
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Energy Skate Park — Playground
Playground. Skate. Apply.
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Energy Skate Park: Basics — Intro
Basic. Skate. Apply.
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Energy Skate Park: Basics — Friction
Basic. Friction. Apply.
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Energy Skate Park: Basics — Playground
Basic. Play. Apply.
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Energy Forms and Changes — Intro
Form. Change. Apply.
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Energy Forms and Changes — Systems
System. Energy. Apply.
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Energy and Sport
Sport. Energy. Apply.
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Wave on a String
Wave. String. Apply.
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Waves Intro — Water
Water. Wave. Apply.
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Waves Intro — Sound
Sound. Wave. Apply.
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Waves Intro — Light
Light. Wave. Apply.
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Waves Intro — Interference
Interfere. Apply. Use.
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Wave Interference — Water
Water. Interfere. Apply.
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Wave Interference — Sound
Sound. Interfere. Apply.
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Wave Interference — Light
Light. Interfere. Apply.
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Wave Interference — Diffraction
Diffract. Apply. Use.
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Sound — Listen to a Single Source
Single. Source. Apply.
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Sound — Measure Sound Speed
Speed. Measure. Apply.
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Sound — Listen with Varying Air Pressure
Pressure. Sound. Apply.
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Sound — Two-Source Interference
Source. Interfere. Apply.
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Normal Modes — One Dimension
1D. Mode. Apply.
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Normal Modes — Two Dimensions
2D. Mode. Apply.
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Resonance
Resonance. Apply. Use.
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Fourier: Making Waves
Fourier. Wave. Apply.
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Doppler Effect
Doppler. Apply. Use.
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Standing Waves
Stand. Wave. Apply.
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Kinetic vs. Potential Energy
KE. PE. Apply.
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Roller Coaster Energy
Coaster. Energy. Apply.
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Bungee Jumper
Bungee. Jump. Apply.
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Conservation of Energy
Conserve. Energy. Apply.
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Spring Pendulum
Spring. Pendulum. Apply.
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Power and Work
Power. Work. Apply.
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Momentum and Collisions
Momentum. Collide. Apply.
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Pulley Mechanical Advantage
Pulley. Apply. Use.
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Wave on a String — Fixed End
Fixed. End. Apply.
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Wave on a String — Loose End
Loose. End. Apply.
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Wave on a String — No End
No. End. Apply.
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PhET — Electricity & Magnetism

Charges and Fields
Charge. Field. Apply.
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Coulomb\
Coulomb. Macro. Apply.
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Coulomb\
Coulomb. Atomic. Apply.
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Resistance in a Wire
Resist. Wire. Apply.
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Ohm\
Ohm. V=IR. Apply.
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Battery Voltage
Battery. Volt. Apply.
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Battery-Resistor Circuit
Battery. Resist. Apply.
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Circuit Construction Kit: DC — Intro
Circuit. DC. Apply.
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Circuit Construction Kit: DC — Lab
DC. Lab. Apply.
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Circuit Construction Kit: DC — AC/DC
AC. DC. Apply.
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Circuit Construction Kit: DC — Virtual Lab
Virtual. Lab. Apply.
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Circuit Construction Kit: AC — Intro
AC. Intro. Apply.
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Circuit Construction Kit: AC — Lab
AC. Lab. Apply.
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Circuit Construction Kit: AC — AC vs DC
AC. DC. Compare.
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Circuit Construction Kit: AC — Virtual Lab
AC. Virtual. Apply.
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Capacitor Lab: Basics — Capacitance
Capacitance. Apply. Use.
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Capacitor Lab: Basics — Light Bulb
Bulb. Cap. Apply.
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Capacitor Lab: Basics — Multiple Capacitors
Multi. Cap. Apply.
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John Travoltage
John. Spark. Apply.
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Balloons and Static Electricity
Balloon. Static. Apply.
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Balloons and Buoyancy
Balloon. Buoy. Apply.
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Faraday\
Faraday. EMF. Apply.
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Faraday\
Bar. Magnet. Apply.
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Faraday\
Coil. Pickup. Apply.
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Faraday\
Electro. Magnet. Apply.
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Faraday\
Transform. Apply. Use.
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Faraday\
Generate. Apply. Use.
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Magnet and Compass
Magnet. Compass. Apply.
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Magnets and Electromagnets
Magnet. EM. Apply.
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Conductivity
Conduct. Apply. Use.
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Signal Circuit
Signal. Apply. Use.
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Voltmeter
Volt. Meter. Apply.
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Microwaves
Microwave. Apply. Use.
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Radio Waves & Electromagnetic Fields
Radio. EM. Apply.
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Radiating Charge
Radiate. Charge. Apply.
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Electric Field of Dreams
EField. Dream. Apply.
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Electric Hockey
Hockey. Charge. Apply.
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Current and Voltage
Current. Volt. Apply.
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Voltage Divider
Divide. Volt. Apply.
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Semiconductors
Semi. Conduct. Apply.
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Charge Pump (Battery)
Pump. Charge. Apply.
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PhET — Light & Optics

Bending Light — Intro
Refract. Bend. Apply.
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Bending Light — Prisms
Prism. Color. Apply.
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Bending Light — More Tools
Tool. Bend. Apply.
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Color Vision — Single Bulb
Single. Color. Apply.
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Color Vision — RGB Bulbs
RGB. Mix. Apply.
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Geometric Optics — Lens
Lens. Image. Apply.
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Geometric Optics — Mirror
Mirror. Image. Apply.
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Geometric Optics: Basics — Lens
Lens. Basic. Apply.
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Geometric Optics: Basics — Mirror
Mirror. Basic. Apply.
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Beer\
Concentrate. Apply. Use.
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Beer\
Beer. Law. Apply.
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Optics Lab
Optic. Lab. Apply.
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Diffraction
Diffract. Apply. Use.
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Lasers
Laser. Coherent. Apply.
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Photoelectric Effect
Photo. Electric. Apply.
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Blackbody Spectrum
Blackbody. Apply. Use.
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Molecules and Light
Molecule. Light. Apply.
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Color and Vision — Eye
Eye. Color. Apply.
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Reflection and Refraction
Reflect. Refract. Apply.
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Young\
Slit. Interfere. Apply.
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PhET — Quantum & Atomic Physics

Build an Atom — Atom
Build. Atom. Apply.
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Build an Atom — Symbol
Symbol. Atom. Apply.
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Build an Atom — Game
Game. Atom. Apply.
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Build a Molecule — Single
Single. Molecule. Apply.
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Build a Molecule — Multiple
Multi. Molecule. Apply.
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Build a Molecule — Playground
Playground. Build. Apply.
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Build a Nucleus — Decay
Decay. Nucleus. Apply.
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Build a Nucleus — Chart
Chart. Nucleus. Apply.
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Build a Nucleus — Decay Multiple
Multi. Decay. Apply.
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Models of the Hydrogen Atom
H. Model. Apply.
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Isotopes and Atomic Mass — Make Isotopes
Make. Isotope. Apply.
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Isotopes and Atomic Mass — Mixtures
Mixture. Apply. Use.
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Atomic Interactions
Atom. Interact. Apply.
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Stern-Gerlach Experiment
Stern. Gerlach. Apply.
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Davisson-Germer: Electron Diffraction
Davisson. Germer. Apply.
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Quantum Wave Interference
Quantum. Wave. Apply.
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Quantum Tunneling and Wave Packets
Tunnel. Quantum. Apply.
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Quantum Bound States
Bound. State. Apply.
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Beta Decay
Beta. Decay. Apply.
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Alpha Decay
Alpha. Decay. Apply.
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Nuclear Fission
Fission. Apply. Use.
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Nuclear Fusion
Fusion. Apply. Use.
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Radioactive Dating Game
Date. Decay. Apply.
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Simplified MRI
MRI. Apply. Use.
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Rutherford Scattering
Rutherford. Scatter. Apply.
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Lasers — Quantum View
Laser. Quantum. Apply.
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Photon Absorption
Photon. Absorb. Apply.
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Wave Packet
Packet. Wave. Apply.
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H Atom — Billiard Ball Model
Billiard. H. Apply.
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H Atom — Plum Pudding Model
Plum. Pudding. Apply.
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H Atom — Classical Solar System
Solar. Classical. Apply.
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H Atom — Bohr Model
Bohr. Apply. Use.
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H Atom — de Broglie Model
Broglie. Wave. Apply.
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H Atom — Schrödinger Model
Schrödinger. Apply. Use.
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PhET — Heat & Thermodynamics

Gas Properties — Ideal
Ideal. Gas. Apply.
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Gas Properties — Explore
Explore. Gas. Apply.
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Gas Properties — Energy
Energy. Gas. Apply.
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Gas Properties — Diffusion
Diffuse. Gas. Apply.
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Gases Intro — Ideal
Intro. Ideal. Apply.
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Gases Intro — Energy
Intro. Energy. Apply.
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Gases Intro — Diffusion
Intro. Diffuse. Apply.
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Diffusion
Diffuse. Apply. Use.
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States of Matter — Solid, Liquid, Gas
Solid. Liquid. Gas.
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States of Matter — Phase Changes
Phase. Change. Apply.
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States of Matter — Interaction
Interact. Apply. Use.
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States of Matter: Basics — Explore
Basic. Explore. Apply.
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States of Matter: Basics — Phase Changes
Basic. Phase. Apply.
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Reversible Reactions
Reverse. React. Apply.
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Energy and the Environment
Environment. Energy. Apply.
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Heat Engine
Engine. Heat. Apply.
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Entropy Explorer
Entropy. Apply. Use.
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PhET — Chemistry

Acid-Base Solutions — Intro
Acid. Base. Apply.
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Acid-Base Solutions — Custom Solution
Custom. Solution. Apply.
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Acid-Base Solutions — My Solution
My. Solution. Apply.
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Acid-Base Solutions — Solutions
Solution. Compare. Apply.
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Balancing Chemical Equations — Intro
Balance. Eq. Apply.
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Balancing Chemical Equations — Balance
Balance. Compute. Apply.
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Balancing Chemical Equations — Game
Game. Balance. Apply.
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Concentration
Concentrate. Apply. Use.
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Molarity
Molarity. Apply. Use.
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Molecule Polarity — Two Atoms
Two. Polar. Apply.
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Molecule Polarity — Three Atoms
Three. Polar. Apply.
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Molecule Polarity — Real Molecules
Real. Mol. Apply.
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Molecule Shapes — Model
Model. Shape. Apply.
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Molecule Shapes — Real Molecules
Real. Shape. Apply.
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Molecule Shapes: Basics
Basic. Shape. Apply.
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pH Scale — Macro
pH. Macro. Apply.
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pH Scale — Micro
pH. Micro. Apply.
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pH Scale — My Solution
pH. Solution. Apply.
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pH Scale: Basics
pH. Basic. Apply.
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Reactants, Products, and Leftovers — Sandwiches
Sandwich. Apply. Use.
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Reactants, Products, and Leftovers — Real Reaction
Real. React. Apply.
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Reactions and Rates — Single Collision
Single. Collide. Apply.
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Reactions and Rates — Many Collisions
Many. Collide. Apply.
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Reactions and Rates — Rate Experiments
Rate. Experiment. Apply.
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Reversible Reactions (Chemistry)
Reverse. Apply. Use.
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Salts and Solubility — Salts
Salt. Solub. Apply.
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Salts and Solubility — Solubility
Solub. Apply. Use.
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Salts and Solubility — Equilibrium
Equilib. Apply. Use.
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Salts and Solubility — Design
Design. Apply. Use.
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Soluble Salts
Salt. Apply. Use.
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Sugar and Salt Solutions — Macro
Sugar. Salt. Macro.
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Sugar and Salt Solutions — Micro
Sugar. Salt. Micro.
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Sugar and Salt Solutions — Water
Water. Apply. Use.
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Sugar and Salt Solutions — Macroscopic
Macro. Apply. Use.
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Atomic Structure Builder
Atomic. Build. Apply.
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Eating and Exercise
Eat. Exercise. Apply.
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Sticking Together
Stick. Apply. Use.
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Periodic Table Interactive
Periodic. Table. Apply.
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Stoichiometry
Stoich. Apply. Use.
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Chemical Bonding
Bond. Apply. Use.
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Equilibrium Explorer
Equilib. Explore. Apply.
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Le Chatelier\
Chatelier. Apply. Use.
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Average Atomic Mass
Average. Mass. Apply.
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PhET — Biology & Life Science

Natural Selection
Select. Adapt. Apply.
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Membrane Channels
Membrane. Channel. Apply.
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Neuron
Neuron. Signal. Apply.
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Gene Expression Essentials — Express
Express. Gene. Apply.
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Gene Expression Essentials — mRNA
mRNA. Apply. Use.
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Gene Expression Essentials — Multi-Cell
Multi-cell. Apply. Use.
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Gene Machine: The Lac Operon
Lac. Operon. Apply.
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Photosynthesis
Photo. Synthesis. Apply.
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Cellular Respiration
Cell. Respire. Apply.
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DNA Replication
DNA. Replicate. Apply.
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Mitosis
Mitosis. Apply. Use.
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Meiosis
Meiosis. Apply. Use.
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Punnett Square Explorer
Punnett. Apply. Use.
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Pedigree Genetics
Pedigree. Apply. Use.
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Cardiovascular System
Cardio. Apply. Use.
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Respiratory System
Respire. Apply. Use.
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Plant Transpiration
Plant. Water. Apply.
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Population Dynamics
Population. Dynamic. Apply.
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Predator-Prey Dynamics
Predator. Prey. Apply.
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Carbon Cycle
Carbon. Cycle. Apply.
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Nitrogen Cycle
Nitrogen. Cycle. Apply.
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Food Web Builder
Food. Web. Apply.
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PhET — Earth & Climate Science

Greenhouse Effect — Waves
Wave. GHG. Apply.
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Greenhouse Effect — Photons
Photon. GHG. Apply.
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Greenhouse Effect — Layer Model
Layer. Model. Apply.
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Greenhouse Effect — Macro
Macro. GHG. Apply.
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The Greenhouse Effect (Legacy)
Legacy. GHG. Apply.
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Plate Tectonics (Earth) — Intro
Plate. Earth. Apply.
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Plate Tectonics (Earth) — Crust
Crust. Earth. Apply.
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Plate Tectonics (Earth) — Plate Density
Density. Earth. Apply.
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Glaciers
Glacier. Apply. Use.
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Climate Model Simple
Climate. Model. Apply.
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Earth Orbit & Seasons
Orbit. Season. Apply.
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Tides Explorer
Tide. Apply. Use.
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Volcano Eruption
Volcano. Apply. Use.
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Hydrologic Cycle
Hydro. Cycle. Apply.
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Ocean Currents
Ocean. Current. Apply.
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Solar Radiation Balance
Solar. Balance. Apply.
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PhET — Astronomy & Space

Gravity and Orbits — Model
Model. Orbit. Apply.
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Gravity and Orbits — To Scale
Scale. Orbit. Apply.
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Gravity and Orbits — Cartoon
Cartoon. Orbit. Apply.
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Gravity and Orbits — Active
Active. Apply. Use.
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Gravity Force Lab
Gravity. Force. Apply.
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Gravity Force Lab: Basics
Basic. Gravity. Apply.
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My Solar System
Solar. Build. Apply.
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Lunar Lander (Astro view)
Lunar. Astro. Apply.
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Escape Velocity
Escape. Velocity. Apply.
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Kepler\
Kepler. Apply. Use.
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Orbital Mechanics
Orbit. Mechanic. Apply.
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Star Formation
Star. Form. Apply.
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Hertzsprung-Russell Diagram
HR. Diagram. Apply.
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Galaxy Classification
Galaxy. Class. Apply.
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Cosmic Distance Ladder
Distance. Cosmic. Apply.
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Tides (Astronomical View)
Tide. Moon. Apply.
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Phases of the Moon
Phase. Moon. Apply.
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Eclipses Sim
Eclipse. Apply. Use.
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Comet Trajectory
Comet. Trajectory. Apply.
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PhET — Math: Numbers & Operations

Arithmetic — Multiply
Multiply. Apply. Use.
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Arithmetic — Factor
Factor. Apply. Use.
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Arithmetic — Divide
Divide. Apply. Use.
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Make a Ten — Make a Ten
Make. Ten. Apply.
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Make a Ten — Equations
Eq. Ten. Apply.
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Number Line: Distance
Distance. Line. Apply.
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Number Line: Integers — Explore
Explore. Int. Apply.
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Number Line: Integers — Generic
Generic. Int. Apply.
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Number Line: Integers — Operations
Op. Int. Apply.
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Number Line: Integers — Distance
Distance. Apply. Use.
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Number Line: Operations — Plot
Plot. Op. Apply.
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Number Line: Operations — Operations
Op. Apply. Use.
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Number Line: Operations — Generic
Generic. Op. Apply.
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Number Line: Operations — Distance
Distance. Op. Apply.
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Number Compare
Compare. Number. Apply.
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Number Play — Counting
Count. Apply. Use.
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Number Play — Subitize
Subitize. Apply. Use.
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Number Play — 10
10. Apply. Use.
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Number Play — Compare
Compare. Apply. Use.
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Number Play — Make a Ten
Make. 10. Apply.
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Estimation
Estimate. Apply. Use.
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Place Value Builder
Place. Value. Apply.
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Decimals Explorer
Decimal. Apply. Use.
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Percentages Explorer
Percent. Apply. Use.
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Ratio and Proportion
Ratio. Proportion. Apply.
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Negative Numbers Explorer
Negative. Apply. Use.
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Order of Operations
Order. Op. Apply.
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Powers of Ten Visualizer
Power. Ten. Apply.
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Scientific Notation Explorer
Scientific. Apply. Use.
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PhET — Math: Algebra & Functions

Equality Explorer — Basics
Equal. Basic. Apply.
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Equality Explorer — Numbers
Number. Equal. Apply.
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Equality Explorer — Variables
Variable. Equal. Apply.
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Equality Explorer — Operations
Op. Equal. Apply.
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Equality Explorer: Basics — One Variable
1. Var. Apply.
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Equality Explorer: Basics — Two Variables
2. Var. Apply.
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Function Builder — Patterns
Pattern. Func. Apply.
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Function Builder — Numbers
Number. Func. Apply.
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Function Builder — Equations
Eq. Func. Apply.
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Function Builder — Mystery
Mystery. Func. Apply.
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Function Builder: Basics — Numbers
Basic. Number. Apply.
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Function Builder: Basics — Patterns
Basic. Pattern. Apply.
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Graphing Lines — Slope
Slope. Apply. Use.
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Graphing Lines — Slope-Intercept
Intercept. Slope. Apply.
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Graphing Lines — Point-Slope
Point. Slope. Apply.
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Graphing Lines — Line Game
Line. Game. Apply.
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Graphing Quadratics — Explore
Explore. Quad. Apply.
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Graphing Quadratics — Standard Form
Standard. Quad. Apply.
Open lesson →
Graphing Quadratics — Vertex Form
Vertex. Quad. Apply.
Open lesson →
Graphing Quadratics — Focus & Directrix
Focus. Directrix. Apply.
Open lesson →
Graphing Slope-Intercept — Slope
Slope. Apply. Use.
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Graphing Slope-Intercept — Graph a Line
Graph. Line. Apply.
Open lesson →
Graphing Slope-Intercept — Place the Points
Place. Point. Apply.
Open lesson →
Graphing Slope-Intercept — Line Game
Game. Line. Apply.
Open lesson →
Expression Exchange — Basics
Express. Basic. Apply.
Open lesson →
Expression Exchange — Explore
Explore. Express. Apply.
Open lesson →
Expression Exchange — Game
Game. Express. Apply.
Open lesson →
Expression Exchange — Variables
Variable. Express. Apply.
Open lesson →
Linear Inequalities Explorer
Linear. Inequal. Apply.
Open lesson →
Systems of Equations
System. Eq. Apply.
Open lesson →
Polynomial Grapher
Polynomial. Apply. Use.
Open lesson →
Logarithms Explorer
Log. Apply. Use.
Open lesson →
Exponential Growth & Decay
Exp. Growth. Apply.
Open lesson →
Sequences and Series
Sequence. Apply. Use.
Open lesson →

PhET — Math: Geometry & Trigonometry

Trig Tour
Trig. Tour. Apply.
Open lesson →
Pythagorean Theorem
Pythagoras. Apply. Use.
Open lesson →
Area Builder — Explore
Explore. Area. Apply.
Open lesson →
Area Builder — Game
Game. Area. Apply.
Open lesson →
Area Model: Multiplication — Explore
Explore. Mult. Apply.
Open lesson →
Area Model: Multiplication — Generic
Generic. Mult. Apply.
Open lesson →
Area Model: Multiplication — Game
Game. Mult. Apply.
Open lesson →
Area Model: Decimals — 1×1
1. 1. Apply.
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Area Model: Decimals — 2×2
2. 2. Apply.
Open lesson →
Area Model: Decimals — Generic
Generic. Dec. Apply.
Open lesson →
Area Model: Decimals — Variables
Var. Dec. Apply.
Open lesson →
Area Model: Algebra — Explore
Explore. Alg. Apply.
Open lesson →
Area Model: Algebra — Generic
Generic. Alg. Apply.
Open lesson →
Area Model: Algebra — Variables
Var. Alg. Apply.
Open lesson →
Area Model: Algebra — Game
Game. Alg. Apply.
Open lesson →
Area Model: Introduction — Explore
Intro. Area. Apply.
Open lesson →
Area Model: Introduction — Multiplication
Mult. Intro. Apply.
Open lesson →
Quadrilateral
Quad. Apply. Use.
Open lesson →
Triangle Explorer
Triangle. Apply. Use.
Open lesson →
Circle and Arc
Circle. Arc. Apply.
Open lesson →
3D Shapes
3D. Shape. Apply.
Open lesson →
Transformations — Rotation
Rotate. Transform. Apply.
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Transformations — Translation
Translate. Apply. Use.
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Transformations — Reflection
Reflect. Apply. Use.
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Transformations — Dilation
Dilate. Apply. Use.
Open lesson →
Symmetry Explorer
Symmetry. Apply. Use.
Open lesson →
Tessellations
Tessellate. Apply. Use.
Open lesson →
Maze Game
Maze. Apply. Use.
Open lesson →

PhET — Math: Statistics & Probability

Plinko Probability
Plinko. Apply. Use.
Open lesson →
Mean: Share and Balance — Predict
Predict. Mean. Apply.
Open lesson →
Mean: Share and Balance — Lab
Lab. Mean. Apply.
Open lesson →
Curve Fitting
Curve. Fit. Apply.
Open lesson →
Least Squares Regression
Least. Square. Apply.
Open lesson →
Estimation Game
Estimate. Apply. Use.
Open lesson →
Distribution Explorer
Distribute. Apply. Use.
Open lesson →
Standard Deviation Explorer
Std. Dev. Apply.
Open lesson →
Histogram Explorer
Histogram. Apply. Use.
Open lesson →
Box Plot Explorer
Box. Plot. Apply.
Open lesson →
Scatter Plot Explorer
Scatter. Plot. Apply.
Open lesson →
Probability Simulator
Probability. Sim. Apply.
Open lesson →
Coin Flip Probability
Coin. Flip. Apply.
Open lesson →
Dice Probability
Dice. Probability. Apply.
Open lesson →
Sampling Distributions
Sample. Distribute. Apply.
Open lesson →
Normal Distribution Explorer
Normal. Apply. Use.
Open lesson →
Confidence Intervals
Confidence. Apply. Use.
Open lesson →
Hypothesis Testing
Hypothesis. Apply. Use.
Open lesson →
Soccer Data
Soccer. Data. Apply.
Open lesson →

PhET — Math: Fractions

Fraction Matcher — Fractions
Match. Fraction. Apply.
Open lesson →
Fraction Matcher — Mixed Numbers
Mixed. Match. Apply.
Open lesson →
Fractions: Equality — Intro
Equal. Frac. Apply.
Open lesson →
Fractions: Equality — Game
Game. Equal. Apply.
Open lesson →
Fractions: Equality — Lab
Lab. Equal. Apply.
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Fractions: Equality — Equality
Equal. Apply. Use.
Open lesson →
Fractions: Intro — Intro
Intro. Frac. Apply.
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Fractions: Intro — Game
Game. Frac. Apply.
Open lesson →
Fractions: Intro — Lab
Lab. Frac. Apply.
Open lesson →
Fractions: Intro — Builder
Build. Frac. Apply.
Open lesson →
Fractions: Mixed Numbers — Intro
Mixed. Intro. Apply.
Open lesson →
Fractions: Mixed Numbers — Lab
Mixed. Lab. Apply.
Open lesson →
Fractions: Mixed Numbers — Game
Mixed. Game. Apply.
Open lesson →
Build a Fraction — Build a Fraction
Build. Frac. Apply.
Open lesson →
Build a Fraction — Mixed Numbers
Mixed. Build. Apply.
Open lesson →
Build a Fraction — Lab
Lab. Build. Apply.
Open lesson →
Build a Fraction — Fractions
Frac. Build. Apply.
Open lesson →
Proportion Playground — Predict
Predict. Apply. Use.
Open lesson →
Proportion Playground — Explore
Explore. Apply. Use.
Open lesson →
Proportion Playground — Lab
Lab. Apply. Use.
Open lesson →
Unit Rates
Unit. Rate. Apply.
Open lesson →
Fraction Addition & Subtraction
Add. Sub. Apply.
Open lesson →
Fraction Multiplication
Multiply. Apply. Use.
Open lesson →
Fraction Division
Divide. Apply. Use.
Open lesson →
Common Denominators
Common. Denom. Apply.
Open lesson →
Visual Fraction Models
Visual. Frac. Apply.
Open lesson →
Fractions to Decimals
Frac. Decimal. Apply.
Open lesson →

PhET — Teacher Resources & Activities

Lesson Plan: Energy Skate Park
Lesson. Energy. Apply.
Open lesson →
Lesson Plan: Projectile Motion
Lesson. Project. Apply.
Open lesson →
Lesson Plan: Circuit Construction Kit
Lesson. Circuit. Apply.
Open lesson →
Lesson Plan: Build an Atom
Lesson. Atom. Apply.
Open lesson →
Lesson Plan: Natural Selection
Lesson. Select. Apply.
Open lesson →
Lesson Plan: Acid-Base Solutions
Lesson. Acid. Apply.
Open lesson →
Lesson Plan: Wave on a String
Lesson. Wave. Apply.
Open lesson →
Lesson Plan: Bending Light
Lesson. Bend. Apply.
Open lesson →
Lesson Plan: Graphing Lines
Lesson. Graph. Apply.
Open lesson →
Lesson Plan: Area Model
Lesson. Area. Apply.
Open lesson →
Lesson Plan: Fractions Intro
Lesson. Frac. Apply.
Open lesson →
Lesson Plan: Gas Properties
Lesson. Gas. Apply.
Open lesson →
Lesson Plan: States of Matter
Lesson. State. Apply.
Open lesson →
Lesson Plan: Coulomb\
Lesson. Coulomb. Apply.
Open lesson →
Lesson Plan: Faraday\
Lesson. Faraday. Apply.
Open lesson →
Lesson Plan: Pendulum Lab
Lesson. Pendulum. Apply.
Open lesson →
Lesson Plan: Balancing Chemical Equations
Lesson. Balance. Apply.
Open lesson →
Lesson Plan: pH Scale
Lesson. pH. Apply.
Open lesson →
Lesson Plan: Gene Expression
Lesson. Gene. Apply.
Open lesson →
Lesson Plan: Greenhouse Effect
Lesson. GHG. Apply.
Open lesson →
Activity Builder: Mechanics Sequence
Activity. Mechanic. Build.
Open lesson →
Activity Builder: Electricity Sequence
Activity. Electric. Build.
Open lesson →
Activity Builder: Chemistry Sequence
Activity. Chem. Build.
Open lesson →
Activity Builder: Biology Sequence
Activity. Bio. Build.
Open lesson →
Activity Builder: Math Sequence
Activity. Math. Build.
Open lesson →
Teacher Tips: Engagement Strategies
Tip. Engage. Apply.
Open lesson →
Teacher Tips: Formative Assessment
Tip. Assess. Apply.
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Teacher Tips: Inquiry-Based Learning
Tip. Inquiry. Apply.
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Teacher Tips: Flipped Classroom
Tip. Flip. Apply.
Open lesson →
Teacher Tips: Virtual Labs
Tip. Virtual. Apply.
Open lesson →
NGSS Alignment Guide
NGSS. Align. Apply.
Open lesson →
Common Core Alignment Guide
Common. Core. Align.
Open lesson →
AP Physics Alignment
AP. Physics. Align.
Open lesson →
AP Chemistry Alignment
AP. Chem. Align.
Open lesson →
AP Biology Alignment
AP. Bio. Align.
Open lesson →
IB Physics Alignment
IB. Physics. Align.
Open lesson →
PhET PD: Introduction to PhET
PD. Intro. Apply.
Open lesson →
PhET PD: Best Practices
PD. Best. Apply.
Open lesson →
PhET PD: Research Base
PD. Research. Apply.
Open lesson →
Workshop: PhET in Elementary Classrooms
Workshop. Elementary. Apply.
Open lesson →
Workshop: PhET in Middle School
Workshop. Middle. Apply.
Open lesson →
Workshop: PhET in High School
Workshop. High. Apply.
Open lesson →
Workshop: PhET in College Classrooms
Workshop. College. Apply.
Open lesson →
Clicker Questions Bank
Clicker. Question. Apply.
Open lesson →
Conceptual Questions Bank
Conceptual. Question. Apply.
Open lesson →
Lab Handouts
Lab. Hand. Apply.
Open lesson →
PhET Translations Resource
Translate. Apply. Use.
Open lesson →
Accessibility Features
Access. Apply. Use.
Open lesson →
Screen Reader Compatibility
Reader. Apply. Use.
Open lesson →
PhET Research Papers Library
Research. Library. Apply.
Open lesson →