Here's real help for math students. From abacus to zero property of multiplication, this handy reference guide for students contains more than five hundred comm

Illustrations and simple definitions covering such areas as number sense and operations, algebra, basic geometry, and data representation.

Can't remember the difference between a prime number and a square number? Forgotten how many sides on a pentagon (5), heptagon (7), or nonagon (9)? Then you nee

A maths dictionary full of clear explanations of the key terms and concepts from Key Stage 2 and up. Each concept is explained alongside worked examples of alte

A fresh new look for this best-selling dictionary which contains over 650 up-to-date words and concepts. Each entry is in alphabetical order and along with a cl