Math Sponges contains 52 activities that require little or no preparation and take from three to ten minutes to complete. Organized alphabetically, with a subject index. Includes hints, variations,... This description may be from another edition of this product.
Leigh Childs and Nancy Admas have creatd a book that can be used as fill ins, in a math class. There are those days when you have an extra 10 minutes and ther is nothing to do well with this book, you can get ideas that have not prep time involved and get the whole class involved. These ideas are enriching and have purpose.
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