00924cam a2200241 4500 242074931 TxAuBib 20150909120000.0 990803s1999||||||||||||||||||||||||eng|u 9780769000619 0769000614 TxAuBib Richardson, Kathy. Planning guide for Developing number concepts / Kathy Richardson. Parsippany, N.J. : Dale Seymour Publications, 1999. xxv, 222 p. : ill. ; 28 cm. Developing Number Concepts Designed to accompany the, Developing Number Concepts series, this resource book includes comprehensive yearlong teaching plans along with classroom management ideas. 20150909. Number concept. Mathematics Study and teaching. Developing Number Concepts .