Reading graphs of linear functions Class activity Play

Reading graphs of linear functions Whiteboard presentation Play

Reasoning with angles Student activity Play

Reasoning with angles Whiteboard exercise Play

Recalling trigonometric facts Student activity Play

Recalling trigonometric facts Whiteboard exercise Play

Reflection of light Student activity 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

Regression line Class activity Play

Regression line Whiteboard presentation Play

Regular polygons – the dodecagon Student activity Play

Regular polygons – the square Simulation Play

Regular polygons – the square Student activity Play

Replacement resistance – connection in parallel Student activity Play

Resistors – a case study Student activity Play

Ruler-and-compass constructions Class activity Play

Ruler-and-compass constructions Whiteboard presentation Play

Ruler-and-compass constructions, locus (1) Class activity Play

Ruler-and-compass constructions, locus (1) Whiteboard presentation Play

Satellite television Student activity Play