Hartu hau. : Classroom discussions [electronic resource] : using math talk to help students learn, grades 1-6 / Suzanne H. Chapin, Catherine O'Connor, Nancy Canavan Anderson.

Izenburua : Classroom discussions [electronic resource] : using math talk to help students learn, grades 1-6 / Suzanne H. Chapin, Catherine O'Connor, Nancy Canavan Anderson.

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