Primarily Math: A Problem Solving Approach
by Judy Leimbach,Sharon Eckert
ISBN 13: 9781593631239
Format: Paperback (48 pages) Publisher: Prufrock Press Published: Jun 2005
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Detective Club: Mysteries for Young Thinkers
ISBN 13: 9781593630652
Format: Paperback (64 pages) Publisher: Prufrock Press Published: Jun 2005