Problems involving properties of angles and parallel lines Class activity Play

Proof and demonstration of the formula for the area of a triangle Student activity Play

Properties of a parallel circuit Animation Play

Properties of the addition and subtraction of parallel vectors Whiteboard exercise Play

Properties of translations Student activity Play

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

Reasoning with angles Student activity Play

Reflection of light 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

Scalar multiple Class activity Play

Scalar multiple Whiteboard presentation Play

Series and parallel circuits Class activity Play

Series and parallel circuits Whiteboard presentation Play

Short circuits Student activity Play

Sides of the triangles Animation Play

Spectral analysis Student activity Play

Spectroscope Animation Play

Statements about the given parallel circuit Whiteboard exercise Play