Q3, W2: January 13-17 Geometry

TeacherKristin Andreason
Subject AreaGeometry Honors
Grade Level8
Week #January 13-17
Unit of InstructionUnit 4: Right Triangles and Trigonometry
Standard(s) Taught

MAFS.912.G-SRT.3.8:  Use trigonometric ratios and the Pythagorean Theorem to solve right triangles in applied problems.

Learning Targets and Learning Criteria
  • use Special Right Triangles (30°-60°-90° and 45°-45°-90°) to solve for missing side lengths.
  • 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.
  • draw right triangles that describe real world problems and label the sides and angles with their given measures.
  • solve application problems involving right triangles, including angle of elevation and depression, navigation, and surveying.
Classroom Activities


  • I will introduce Special Right Triangles and their connection to Triangle Similarity
  • We will do the first two pages of a packet on 45-45-90 Triangles together
  • Students will complete the practice pages of the 45-45-90 packet independently


  • We will do the first three pages of the 30-60-90 Triangles packet together


  • I will go over a few problems from the IXL on Geometric Mean to help students who struggled with that.
  • Students will complete the practice pages of the 30-60-90 Triangles packet.
  • Students will do IXL Q.4.
  • Students will finish the IXL P-New on Geometric Mean.
Assignments Due
  • Practice Problems on 30-60-90 Triangles packet due January22.
  • IXL P-New due January 22.
  • IXL Q.4 due January 22.
Additional Resources

All IEP and ESOL accommodations are provided daily.