Build rectangles of various sizes and relate multiplication to area. Discover new strategies for multiplying large numbers.

Build rectangles of various sizes and relate multiplication to area. Partition a rectangle into smaller areas and discover new strategies for multiplying decimals!

Build rectangles of various sizes and relate multiplication to area. Discover new strategies for multiplying algebraic expressions.

Express yourself through your genes!

Explore how a capacitor works! Change the size of the plates and the distance between them. Change the voltage and see charges build up on the plates. View the electric field, and measure the voltage.

Experiment with an electronics kit! Build circuits with batteries, resistors, light bulbs, and switches.

Play with functions while you ponder Art History. Look for patterns, then apply what you learned on the Mystery screen! Sample learning goals:

Play with one or two pendulums and discover how the period of a simple pendulum depends on the length of the string, the mass of the pendulum bob, the strength of gravity, and the amplitude of the swing. Observe the energy in the system in real-time, and vary the amount of friction.

Build coin expressions, then exchange them for variable expressions. Simplify and evaluate expressions until you are ready to test your understanding of equivalent expressions in the game!Sample Learning Goals·        Simplify expressions by combining like-terms

When is a molecule polar? Change the electronegativity of atoms in a molecule to see how it affects polarity. See how the molecule behaves in an electric field. Change the bond angle to see how shape affects polarity.Sample Learning Goals