ISBN 9780325081144 books & textbook
But Why Does It Work?: Mathematical Argument in the Elementary Classroom
Schifter, Deborah Russell, Susan Jo Bastable, Virginia Higgins, Traci Kasman, Reva
HEINEMANN /2017-04-04 Paperback / 176 Pages
isbn-10: 032508114X / isbn-13: 9780325081144
