The class braids irrational numbers, Pythagoras, and perimeter together. The mini-assessment requires scholars to use irrational numbers and the Pythagorean Theorem to find perimeters of rugs. The rugs are rectangular, triangular, circular, or semi-circular in shape.

Concepts

irrational numbers, perimeter, perimeter of polygons, perimeter of rectangles, perimeter of triangles, circumference, pythagorean theorem

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Additional Tags

math

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Instructional Ideas

• Provide opportunities for practice in finding the congruent sides of isosceles triangles
• Give the class a couple of the sample responses to analyze

Classroom Considerations

• The class should be familiar with finding square roots of perfect squares

Pros

• Contains tables to help analyze responses
• The resource contains annotated sample solutions

Cons

• There are some slight typos on the rubric, such as leaving off pi in the formula and including ft after a point value

Common Core

8.NS.A.2 8.G.B.7 MP2 MP5