Proportions Whiteboard exercise Play

Proportions in crossing lines cut by two parallel lines Whiteboard exercise Play

Proportions in crossing lines cut by two parallel lines Student activity Play

Pythagoras' theorem – geometric proof Student activity Play

Quadratic inequalities Whiteboard presentation Play

Quadratic inequalities Class activity Play

Radio waves Student activity Play

Rate of change on the straight line Whiteboard exercise Play

Rate of change on the straight line Student activity Play

Rational numbers are dense on the number line Student activity Play

Rational numbers on the number line Animation Play

Rational numbers on the number line – proof of existence Animation Play

Reach the star Game Play

Reading graphs of linear functions Whiteboard presentation Play

Reading graphs of linear functions Class activity Play

Reading the graph Student activity Play

Reasoning with angles Whiteboard exercise Play

Recalling trigonometric facts Student activity Play

Recalling trigonometric facts Whiteboard exercise Play

Reflection symmetry Animation Play

Reflection symmetry Whiteboard exercise Play

Reflection symmetry in the coordinate system in the line y = x Student activity Play

Reflection symmetry in the coordinate system in the line y = –x Student activity Play

Reflection symmetry in the coordinate system in the lines x = a and y = b Student activity Play

Reflection symmetry of a figure in the coordinate system Whiteboard exercise Play