ISBN 0325009287 books & textbook
You Can't Keep Slope Down: And Other Skill-Building Math Activities, Grades 8-9 (The Math with a Laugh Series)
Michael P Kline Ruopp, Faye Poundstone, Paula
Heinemann /2007-03-13 Paperback / 128 Pages
isbn-10: 0325009287 / isbn-13: 9780325009285
