Helix’s Discovery Maths Set for 7 to 11 year-olds includes a beam compass, which makes drawing circles simple for the smallest hands, an angle measure, which covers 360 degrees, and a number line to help children understand positive and negative numbers. Pounds 5.99 from leading stationers. Also available is an Achiever Maths Set for 11 to 16 year-olds which covers shape and space, number, measure and handling data Pounds 8.99
