Representing a quadratic function in vertex form by completing the square Student activity Play

Results of division involving irrational numbers Whiteboard exercise Play

Rhombuses and squares Student activity Play

Rolling a die Animation Play

Roots of numbers Animation Play

Roots of roots – finding true equations Whiteboard exercise Play

Roots of roots – more examples of true or false equations Whiteboard exercise Play

Rotation symmetry Animation Play

Rotations Student activity Play

Rotations Whiteboard exercise Play

'Rounded' Pythagorean theorem Animation Play

Rounding large numbers Whiteboard exercise Play

Rounding natural numbers to the nearest 10 Whiteboard exercise Play

Rounding natural numbers to the nearest 10 Student activity Play

Rounding natural numbers to the nearest 100 Whiteboard exercise Play

Rounding natural numbers to the nearest 100 Student activity Play

Rounding natural numbers to the nearest 1000 Whiteboard exercise Play

Rounding natural numbers to the nearest 1000 Student activity Play

Rounding numbers Whiteboard presentation Play

Rounding numbers Class activity Play

Rounding numbers Whiteboard presentation Play

Rounding numbers Class activity Play

Rounding the two numbers Whiteboard exercise Play

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

Ruler-and-compass constructions, locus (2) Class activity Play