00862cam a2200253 4500 1855667037 TxAuBib 20130131120000.0 100728s2010||||||||||||||||||||||||eng|u 2010281076 9780756649791 075664979X TxAuBib Lewis, Barry. Help your kids with math : a unique step-by-step visual guide. 1st American ed. New York : Dorling Kindersley, 2010. 256 p. : col. ill. ; 24 cm. Includes index. 20130131. Mathematics Study and teaching (Elementary.) Mathematics Study and teaching (Middle School.) Mathematics Study and teaching (Secondary.)