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Using base-ten block diagrams for divisibility tests. (English)
Teach. Child. Math. 15, No. 6, 370-381 (2009).
From the introduction: This department features children\rq s hands-on and minds-on explorations in mathematics and presents teachers with open-ended investigations to enhance mathematics instruction. These tasks invoke problem solving and reasoning, require communication skills, and connect various mathematical concepts and principles. The ideas presented here have been tested in classroom settings. This investigation provides students with a rich context in which they explore and discover divisibility tests using base-ten blocks and diagrams. The activities were carried out in a sixth-grade classroom and took a significant amount of instructional time, but the time was well spent. The activities are also accessible to students in grades 4 and 5.
Classification: F62 F63 E52 E53
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