In this resource students are given an image of a reciprocal curve, y=k/x. Two tangents to the curve are used, together with the coordinate axes, to form an 'arrow head' quadrilateral under the curve. The challenge is to determine the area of the quadrilateral.

The first step towards solving the problem...

In this resource a presentation and linked activities provide design and technology teachers with opportunities to highlight the different values and beliefs that designers may hold. Students can engage in exploring their own values about the responsibilities of designers and companies too. The presentation ...

A function is defined so that f(xy) = f(x) + f(y) for all positive integers x and y. Students are given the value of f(10) and (40) and are challenged to determine the value of f(500).

In each student worksheet contains different values for f(10) and f(40) but for...

This resource from the Institute of Physics (IOP), describes how X-rays can be used to image the body. The X-rays video, taken from an IOP Schools and Colleges lecture, describes how Roentgen discovered how to image using X-rays, in his lab. The lecture also describes how barium and iodine can be used to to image...