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Canada, Daniel L.; Ciancetta, Matthew A.; Blair, Stephen D. – Mathematics Teaching in the Middle School, 2014
How many squares can be found on a typical 5 × 5 geoboard? Teachers who are unfamiliar with this question may wish to stop here and reflect a bit. The question can lead to wonderful student discourse: How can someone tell if something is a square? Should squares be counted that are the same size (but in a different location) or just different…
Descriptors: Mathematics Instruction, Geometric Concepts, Secondary School Mathematics, Middle School Students