# Q2, W4: November 8-12 Geometry

Teacher Kristin Andreason Geometry Honors 8 November 8-12 Unit 2B: Congruence of Proofs with Triangle Properties
Standard(s) Taught

MAFS.912.G-C.3.10:  Prove theorems about triangles; use theorems about triangles to solve problems. (Theorems include: measures of interior angles of a triangle sum to 180°; triangle inequality theorem; base angles of isosceles triangles are congruent; the segment joining midpoints of two sides of a triangle is parallel to the third side and half the length; the medians of a triangle meet at a point.)

Learning Targets and Learning Criteria
• classify triangles by sides and angles
• solve problems using definitions, theorems, postulates about triangles, including:

a) Measure of interior angles of a triangle sum to 180 degrees

b) Base angles of isosceles triangles are congruent

c) An exterior angle of a triangle is equal to the sum of the measures of the remote interior angles

d) Hinge Theorem

e) The medians of a triangle meet at a point (centroid)

f) The angle bisectors of a triangle meet at a point (incenter)

g) The perpendicular bisectors of a triangle meet at a point (circumcenter)

Classroom Activities

Monday/Tuesday:

1. Students will take notes in a Segments of Triangles flipbook
2. Students will create note page on Points of Concurrency
3. We will look at Geogebra to see where Points of Concurrency can be in relation to triangle
4. Students will do IXL M.3

Wednesday:

1. Students will take notes on Hinge Theorem and Midsegments
2. Students will do the Kuta Software Midsegment worksheet

Friday:

1. Third Period will do the Peel and Stick Proofs Activity
Assignments Due
• IXL M.3
• Kuta Software worksheet on Midsegments