Teaching modern mathematics in the elementary school

Manylion Llyfryddiaeth
Prif Awdur:	Fehr, Howard Franklin, 1901-
Awduron Eraill:	Phillips, Jo McKeeby, joint auth
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	[Reading, Mass.] Addison-Wesley [c1967]
Pynciau:	Mathematics > Study and teaching (Elementary)