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Kurz, Terri L.; Yanik, H. Bahadir; Lee, Mi Yeon – Clearing House: A Journal of Educational Strategies, Issues and Ideas, 2016
Using a dog's paw as a basis for numerical representation, sixth grade students explored how to count and regroup using the dog's four digital pads. Teachers can connect these base-4 explorations to the conceptual meaning of place value and regrouping using base-10.
Descriptors: Animals, Number Concepts, Mathematics, Mathematics Education
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Levenson, Esther; Tsamir, Pessia; Tirosh, Dina – Journal of Mathematical Behavior, 2007
This study investigates two sixth grade students' dilemmas regarding the parity of zero. Both students originally claimed that zero was neither even nor odd. Interviews revealed a conflict between students' formal definitions of even numbers and their concept images of even numbers, zero, and division. These images were supported by practically…
Descriptors: Number Systems, Grade 6, Mathematics Instruction, Mathematical Concepts