A Maths Dictionary for Kids is a FREE, interactive online math dictionary. It's a great tool to introduce & explain new topics. The math charts section is great too! Handy to print relevant charts out & to keep in your Relief Folder. http://www.amathsdictionaryforkids.com/ *The author, Jenny Eather, also created the fantastic web sites 'Rainforest Maths' & 'Writing Fun'. These websites now require a fee to access them.