Error patterns in computation : using error patterns to help each student learn /

Ashlock, Robert B., 1930-,

Error patterns in computation : using error patterns to help each student learn / [print] Robert B. Ashlock. - tenth edition. - Boston : Allyn and Bacon, (c)2010. - xiii, 274 pages : illustrations ; 23 cm.





9780135009109

2008045371


Arithmetic--Study and teaching (Elementary)

QA135 QA135.A826.E776 2010