Unit 3
Flat Shapes All around Us
Unit Goals
Unit Narrative
This unit introduces students to the foundational concepts of geometry, with a focus on familiar flat (two-dimensional) shapes.
Students may initially associate names of shapes with everyday objects. For example, a rectangle is a shape that looks like a door. Students need to see and interact with many examples of a shape to accurately relate objects in their environment to the geometric term.
For instance, students may say that only one of the two shapes is a triangle—the isosceles triangle sitting on its base—because they have seen examples like it...
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