Imagine a world built of triangles. A performance task asks scholars to consider just that. They use their knowledge of special segments of a triangle to make decisions about the area of triangular plots of land.

Concepts

area of triangles, median, proofs

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Additional Tags

math

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Instructional Ideas

• Provide manipulatives for pupils to use while exploring the question
• For younger grades, allow a less formal proof; expect more formalized language from learners in older grades

Classroom Considerations

• Suggests using geometry software

Pros

• Provides the resource in an editable format
• Emphasizes mathematical vocabulary

Cons

• None

Common Core

HSG-CO.C.10