Over 300 highly interactive topics, use with any existing textbook, insert your own values and explore their effects, shows calculations, plots graphs, full colour graphics redrawn to scale for every change, explanatory text, step through topics, even makes revision enjoyable. Plus full colour printing showing your own chosen values, copy and paste to make custom teacher handouts or students course work, modify or add to the text and questions. F
If you want to test yourself and find out just how fast you think, then this is the game for you. It will help you sharpen your counting and thinking skills.