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Title: This book is too small for the price
Review: Before you buy this book be aware that it measures [approximately] less than 3x5". However, Donald Cohen has some great ideas. It is true that you can easily introduce younger students to the type of thinking that will be necessary in precalculus and up. I think it is worth it to get the workbook, which covers most of the material presented in this book. But don't buy both.
