8th Grade Math Unit 8

Big Idea:

Investigate and use the Pythagorean Theorem and measure of angles

Student Expectations:

Priority TEKS

8.7(C) [Readiness] Use the Pythagorean Theorem and its converse to solve problems.

8.8(D) [Supporting] Use informal arguments to establish facts about the angle sum and exterior angle of triangles, the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles.

8.7(D) [Supporting] Determine the distance between two points on a coordinate plane using the Pythagorean Theorem.

Focus TEKS

8.6(C) [Supporting] Use models and diagrams to explain the Pythagorean Theorem.

Ongoing TEKS

8.8(A) [Supporting] Write one-variable equations or inequalities with variables on both sides that represent problems using rational number coefficients and constants.

8.8(B) [Supporting] Write a corresponding real-world problem when given a one-variable equation or inequality with variable on both sides of the equal sign using rational number coefficient and constants.

8.8(C) [Readiness] Model and solve one-variable equations with variables on both sides of the equal sign that represent mathematical and real-world problems using rational number coefficients and constants.

Student Learning Targets:

• I will develop an understanding of the relationship of triangle sides and angles.
• I will be able to find the distance between two points.
• I will solve problems involving Pythagorean Theorem and its converse.
• I will use the exterior angle theorem to find angles on a triangle.
• I will be able to identify sets of angles using parallel lines and a transversal.
• I will write an explanation for how I can find missing angles.

Essential Questions:

• What process can you use to find missing angles? Explain how this is useful for real-world applications.

Extra Information:

Adopted Textbook: McGraw-Hill 8th Grade Mathematics

District Grading Policy

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