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Promoting helping behavior in cooperative small groups in middle school mathematics. (English)
Am. Educ. Res. J. 31, No. 2, 369-395 (1994).
Classification: D53
1
Helping and Getting Help‒Essential Skills for Effective Group Problem Solving. (English)
Arith. Teach. 41, No. 9, 521-25 (1994).
Classification: C53
2
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