The centre and the radius of a circle Simulation Play

The chain rule for more than two functions Student activity Play

The chain rule for more than two functions Animation Play

The co-ordinates of the points Whiteboard exercise Play

The common points of the disc and the axes Animation Play

The common points of the disc and the coordinate axes Student activity Play

The composition of two enlargements Animation Play

The coordinates of the marked points Whiteboard exercise Play

The cosine and coordinates of the points Animation Play

The cosine rule leading to two solutions Animation Play

The definite integral of the sum or difference of two functions Student activity Play

The definite integral of the sum or difference of two functions Whiteboard exercise Play

The derivative of the product of two functions Whiteboard exercise Play

The derivative of the product of two functions Student activity Play

The derivative of the quotient of two functions Student activity Play

The derivative of the quotient of two functions Whiteboard exercise Play

The distance between points A and B Animation Play

The distance between the points Animation Play

The distance between the points in the coordinate system Whiteboard exercise Play

The distance between two cities Whiteboard exercise Play

The distance between two points in the plane Student activity Play

The distance between two points in the plane Whiteboard exercise Play

The distance formula Student activity Play

The efficiency of simple machines Whiteboard exercise Play

The efficiency of simple machines Student activity Play