Lessons

2 lessons found

Unit: Geometry Grade Band: 6-8 Subject Area: Mathematics

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  • Classifying Quadrilaterals

    Geometry

    Students build and refine decision trees to classify objects efficiently with yes/no questions, then apply the thinking to quadrilaterals — grouping by properties and, in CODAP,...

  • Ratios with Similar Triangles

    Geometry

    Students investigate similar right triangles by measuring side lengths and calculating ratios, discovering that equal-angle triangles have proportional sides (consistent...

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