Signs of the ratios in the different quadrants Whiteboard exercise Play

The cubic function and its derivative Animation Play

The derivative of the natural exponential function Animation Play

The derivative of the natural exponential function Student activity Play

The derivative of the natural logarithmic function Animation Play

The derivative of the natural logarithmic function Student activity Play

The derivative of the simplest cubic function Student activity Play

The road from a car park to a pier Whiteboard exercise Play

The secant method Animation Play

The secant method Student activity Play

The tangent and the secant Student activity Play

The tangent and the secant Animation Play

Using the secant method Whiteboard exercise Play

Using trigonometric identities Whiteboard exercise Play