Welcome to my 113th gems post. This is where I share some of the latest news, ideas and resources for maths teachers. 1. L Shapes In MathsPad’s July update they shared a free interactive tool for finding missing sides of L-shapes. This can be used to demonstrate how the vertical lines on one side of the shape match the total length on the other side and to help pupils separate horizontal and vertical measures when finding missing lengths. There are accompanying…