Radar stations Whiteboard exercise Play

Radiation of objects Class activity Play

Radiation of objects Whiteboard presentation Play

Radiation of the stars Simulation Play

Radiation of the stars Student activity Play

Ratios of sides in a triangle Animation Play

Reasoning with angles Student activity Play

Recognising patterns Student activity Play

Rectangular board Whiteboard exercise Play

Reflection is a transformation Student activity Play

Reflection of light at a smooth surface Animation Play

Reflection of plane waves Animation Play

Reflection of plane waves 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

Reflectors Student activity Play

Reflectors Whiteboard exercise Play

Regular pentagon Animation Play

Regular polygons Animation Play

Regular polygons – the equilateral triangle Student activity Play

Regular polygons – the equilateral triangle Simulation Play

Regular polygons – the octagon Student activity Play

Regular tetrahedrons Student activity Play