A square root Student activity Play

A square root Animation Play

Building squares Whiteboard exercise Play

Coins Whiteboard exercise Play

Finding square roots Animation Play

Finding square roots (1) Student activity Play

Finding square roots (2) Student activity Play

Finding square roots – more difficult problems Whiteboard exercise Play

Finding square roots – more difficult problems Student activity Play

Finding the length of a side of a square Whiteboard exercise Play

Segments Whiteboard exercise Play

Square numbers Whiteboard exercise Play

Triangular and square numbers Class activity Play

Triangular and square numbers Whiteboard presentation Play

Triangular and square numbers Student activity Play

Triangular and square numbers Animation Play

Triangular numbers Student activity Play

Triangular numbers Animation Play

Triangular numbers, squares, roots Student activity Play

Triangular numbers, squares, roots Animation Play