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Shadow Puppets: Exploring a Context for Similarity and Dilations
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DeJarnette, Anna F.; Rosado Lausell, Sahid L.; González, Gloriana – Mathematics Teacher, 2015
How can geometry teachers design great tasks that allow students to make connections among interrelated concepts and expand their geometric reasoning skills? Many curricular materials provide problems for students to apply a single geometric concept. However, these problems do not always promote reasoning opportunities for students, because…
Descriptors: Geometry, Geometric Concepts, Task Analysis, Mathematics Activities