Activities in this teaching pack include a differentiated worksheets and sets of cards to support finding the groups of four angles that can be found in a quadrilateral trapezium shape by using angle protractors and addition and subtraction number calculations.

The interactive presentation gets the children to explore how to use the measured values of some of the angles in quadrilateral shapes to find the other sets of angles in each shape by using number calculations.

This lesson is part of a maths scheme of work to get the children to record measurements and complete calculations to identify the value and type of angles found on a range of different 2D shapes. There are teaching activities for shared learning, differentiated worksheets to support independent learning and interactive presentations to introduce concepts and key skills.