Reflection is a transformation 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 in the coordinate system in the x-axis and the y-axis Student activity Play

Reflection symmetry of the triangle – the coordinates of the vertices Whiteboard exercise Play

Regular pentagon Animation Play

Regular polygons Animation Play

Regular polygons – the equilateral triangle Simulation Play

Regular polygons – the equilateral triangle Student activity Play

Regular polygons – the octagon Student activity Play

Regular polyhedron Animation Play

Regular tetrahedrons Student activity Play

Regular triangle and regular hexagon Whiteboard exercise Play

Relationship between volumes of similar solids Whiteboard exercise Play

Relationship between volumes of similar solids Student activity Play

Right-angled triangle Animation Play

Right-angled triangle or not? Animation Play

Rotation Animation Play

Rotation is a transformation Student activity Play

Rotational symmetry Student activity Play

Rotational symmetry of order 4 Simulation Play

Rotational symmetry of order 6 Simulation Play

Ruler-and-compass constructions Whiteboard presentation Play

Ruler-and-compass constructions Class activity Play

Ruler-and-compass constructions, locus (2) Whiteboard presentation Play