The area of a rectangle Whiteboard exercise Play

The area of a rectangle Student activity Play

The area of a square Animation Play

The area of the envelope Whiteboard exercise Play

The arithmetic mean of the square distance Animation Play

The beginning of the magic square Animation Play

The biggest possible area Animation Play

The circle and the equilateral triangle Student activity Play

The circle inscribed in a square Whiteboard exercise Play

The correct graph to read the rounded value of the square root Whiteboard exercise Play

The derivative of the square root of x Student activity Play

The derivative of the square root of  x Whiteboard exercise Play

The diagonal of a square Whiteboard exercise Play

The diagonal of a square Student activity Play

The difference of squares Animation Play

The difference of squares Animation Play

The difference of squares – common factor first Whiteboard exercise Play

The difference of squares – common factor first! Student activity Play

The dimensions of the paper sizes Whiteboard exercise Play

The equilateral triangle and the square Whiteboard exercise Play

The exact area of a rectangle Whiteboard exercise Play

The formula for the difference of squares Student activity Play

The formula for the difference of squares Whiteboard exercise Play

The formula for the difference of squares Whiteboard exercise Play

The formula for the square of a difference Student activity Play