Pythagoras' theorem – geometric proof Whiteboard exercise Play

Pythagoras' theorem – geometric proof Student activity Play

Quadrilaterals Student activity Play

Quadrilaterals Whiteboard exercise Play

Quadrilaterals Whiteboard exercise Play

Quadrilaterals and their properties Whiteboard presentation Play

Quadrilaterals and their properties Class activity Play

Quadrilaterals – reminder Animation Play

Quadrilaterals – squares and rectangles Student activity Play

Quantities of the same kind Student activity Play

Radiation of solids Student activity Play

Radioactivity Student activity Play

Radioactivity Animation Play

Ratio of two quantities of different kinds Student activity Play

Ratio of two quantities of different kinds Whiteboard exercise Play

Ratio of two quantities of different kinds Whiteboard exercise Play

Ratio of two quantities of the same kind Student activity Play

Ratio of two quantities of the same kind Simulation Play

Ratio of two quantities of the same kind Whiteboard exercise Play

Rational numbers Whiteboard exercise Play

Rationalising the denominator Whiteboard exercise Play

Rationalising the denominator Student activity Play

Ratios in paper sizes Animation Play

Ratios of squares Animation Play

Reading out the position from a plan Student activity Play