ISBN 0132612267 books & textbook
Elementary and Middle School Mathematics: Teaching Developmentally (8th Edition) (Teaching Student-Centered Mathematics Series)
Van de Walle, John A. Karp, Karen S. Bay-Williams, Jennifer M.
Pearson /2012-01-10 Paperback / 576 Pages
isbn-10: 0132612267 / isbn-13: 9780132612265
