The composition of two enlargements 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 the centres of circles Student activity 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 efficiency of simple machines Whiteboard exercise Play

The efficiency of simple machines Student activity Play

The efficiency of the energy conversion process Student activity Play

The eggs from the two farms Animation Play

The equality of two ratios Animation Play

The equation of a line going through two points Student activity Play

The equation of a line going through two points Whiteboard exercise Play

The field lines for two point charges Animation Play

The formula for the derivative of the product of two functions Animation Play

The formula for the derivative of the quotient of two functions Animation Play

The integral of a combination of two functions Student activity Play

The integral of a combination of two functions Whiteboard exercise Play

The integral of the difference of two functions Student activity Play