Learning Goal: Build fluency with angles of polygons and prepare for quadrilaterals with a challenging task.

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Classwork

• Estimation – Texas 2
• Warm Up
• Practice
  • Problems on the back are from Open Middle
• Complete the Quadrilateral (Fawn Nguyen)
  • Handout
  • Shapes Slide
  • Answers

 Standards

• TEKS
  • G.5(A) – investigate patterns to make conjectures about geometric relationships, including angles formed by parallel lines cut by a transversal, criteria required for triangle congruence, special segments of triangles, diagonals of quadrilaterals, interior and exterior angles of polygons, and special segments and angles of circles choosing from a variety of tools