A battery of cells Student activity Play

A battery of cells Simulation Play

A battery of cells Whiteboard exercise Play

A black box Student activity Play

A closer look at the sine, the cosine and the tangent Whiteboard exercise Play

A closer look at the trigonometric ratios Student activity Play

A function Student activity Play

A linear function Animation Play

A negative value of the discriminant Whiteboard exercise Play

A negative value of the discriminant Student activity Play

A new price Whiteboard exercise Play

A new price Student activity Play

A permanently charged body Animation Play

A positive and a negative square root Whiteboard exercise Play

A pump Animation Play

A simple identity Student activity Play

Absolute value and graphs of trigonometric functions Whiteboard exercise Play

Absolute value and graphs of trigonometric functions Student activity Play

Absolute value of a function Student activity Play

Absolute value of a function Whiteboard exercise Play

Absolute value of a number Whiteboard exercise Play

Absolute value of a number, modulus function Student activity Play

Absolute value of the argument of a function Animation Play

Absolute values of entropy Whiteboard exercise Play

Absolute values of entropy Student activity Play