# Q3, W2: January 10-14 Geometry Teacher Kristin Andreason Geometry Honors 8 January 10-14 Unit 4: Right Triangles and Trigonometry
Standard(s) Taught

MAFS.912.G-SRT.2.4:  Prove theorems about triangles. (Theorems include: Triangle Proportionality Theorem or Side Splitter Theorem – a line parallel to one side of a triangle divides the other two proportionally; the Pythagorean Theorem proved using triangle similarity.)

Learning Targets and Learning Criteria
• apply theorems, postulates, or definitions to prove theorems about triangles, including proving The Pythagorean Theorem using triangle similarity.
• use angle measures to estimate side lengths and vice versa.
• solve right triangles by finding the measures of all sides and angles in the triangles using Pythagorean Theorem and/or trigonometric ratios and their inverses.
Classroom Activities

Monday/Tuesday:

• I will give students notes on the Pythagorean Theorem and Its Converse and we will go over
• We will watch a video on Proving the Pythagorean Theorem
• I will break down the proof of the Pythagorean Theorem and help them see how it is based on similar triangles
• Students will do IXL’s Q.1 and Q.3 on the Pythagorean Theorem and the Pythagorean Inequality Theorem

Wednesday:

• Students will work on their Dilations Project which we already set up

Thursday/Friday:

• Students will finish their Dilations Project
• If they finish, they can finish working on IXL’s
Assignments Due
• IXL’s Q.1 and Q.3
• Dilations Project