Book excerpt: This big book edition of "My First Oxford Maths Dictionary" is perfect for classroom use. It is a lively and fun dictionary to introduce key mathematicalwords and ideas to children aged 5-7, in primary school. It contains over 200 mathematical words in alphabetical order, each with a simplemeaning or example of use. Every word is illustrated with friendly artwork or clear diagrams to help make meanings clear. At the back of the book is an illustrated section which gives extra words that children will discover and use in their maths lessons - from time words to classroom equipment. All the words in the dictionary have been carefully chosen to support and develop mathematical language and understanding. Links to National Numeracy Framework at Reception, Y1 and Y2. Peter Patilla is a key infant maths specialist and the author of the Oxford "Starting Off With", "At Home With", and "My First Books of" series. He not only writes but advises and consults for publishers and INSET.