Arithmetic Teacher (1964) Vol. 11, No. 4
. Volume 11, number 4 APRIL 1964 Learning by discovery: what is learned? Bert Y. Kersh Individualized teaching of fifthaan sixth-grade arithmetic William A. Graham A description of twenty arithmetic underachievers Ramon Ross The new mathematics Clyde G. Corle Also, a survey of teacher training efforts, duplation-mediat
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