Distance – a more difficult problem Whiteboard exercise Play

Distance – a more difficult problem Student activity Play

Dividing into a given ratio Student activity Play

Dividing natural numbers Student activity Play

Divisibility by 11 Student activity Play

Division algorithm Student activity Play

Drag force Whiteboard exercise Play

Drawing a parallelogram Whiteboard exercise Play

Drawing a parallelogram and calculating its area Whiteboard exercise Play

Drawing a polygon Whiteboard exercise Play

Drawing a polygon Whiteboard exercise Play

Drawing pins Animation Play

Easy calculations Student activity Play

Eclipses Class activity Play

Eclipses Whiteboard presentation Play

Effect of concentration on the reaction rate. Rate equation Whiteboard presentation Play

Effect of concentration on the reaction rate. Rate equation Class activity Play

Effectiveness Whiteboard exercise Play

Eight 1-cm cubes Animation Play

Energy, power and intensity of a wave Student activity Play

Energy, power and intensity of a wave Animation Play

Equal angles imply parallel lines Student activity Play

Equations and tables Student activity Play

Estimating areas Student activity Play

Example of approximation area by rectangles Animation Play