A mirror and a light bulb Student activity Play

A mobile source and a stationary observer Student activity Play

A number accurate to the given decimal place Student activity Play

A range of sizes Animation Play

A refracting telescope Student activity Play

A river Simulation Play

A snail is climbing up Whiteboard exercise Play

A snail is going for a walk Whiteboard exercise Play

A snail is going for a walk Student activity Play

A snail's trip Whiteboard exercise Play

A ten-day bike trip Whiteboard exercise Play

A tourist Animation Play

A train Whiteboard exercise Play

A trip in three days Animation Play

A trip to some destination Simulation Play

A vector's characteristics Animation Play

A water wheel Whiteboard exercise Play

A water wheel Student activity Play

AA property of similar triangles Student activity Play

Accelerating motion Whiteboard presentation Play

Accelerating motion Class activity Play

Accelerating motion Class activity Play

Accelerating motion Whiteboard presentation Play

Accommodation Animation Play

Adjusting sharpness Student activity Play