Two studies in education:
The relation of accuracy to speed in addition;
A study of bilateral transfer. By Henry Lester Smith [and] Merrill Thomas Eaton.
|Main Author:||Smith, Henry Lester, 1876-|
|Related Names:||Eaton, Merrill Thomas.|
Bloomington, Bureau of cooperative research, Indiana university 
Learning, Psychology of.
Arithmetic > Arithmetic / Study and teaching.
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