Math Challenge Level I: 190 Fun and Creative Problems for Kids
by Marge Eberts, Peggy Gisler, James E. Riley
ISBN 13: 9781596470255
Format: Paperback (192 pages) Publisher: Good Year Books Published: 28 Feb 2005
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Doing Their Best: Encouraging Children to Earn Good Grades
by Marge Eberts,Peggy Gisler
ISBN 13: 9781478275138
Format: Paperback (212 pages) Publisher: CreateSpace Independent Publishing Platform Published: 01 Nov 2012