Research-based guidance and classroom activities for teachers of mathematics

Playground Snapsnot

Playground Snapshot is a task on the NRICH website.

Progression in learning about spatial relations, especially three-dimensional (3D) geometry, entails working with 2D representations of 3D shapes.

This task uses the context of the shadows from a piece of outdoor playground equipment to entice pupils into honing their 3D visualisation skills. The idea of sun shadows can be extended to other activities, including reproducing the ancient feat of Eratosthenes in estimating the circumference of the earth, or using trigonometry to give a measure of the height of a building from its shadow (assuming the solar altitude is known).

Go to Playground Snapshot on the NRICH website >>