Q2, W2: October 25-29 Geometry

TeacherKristin Andreason
Subject AreaGeometry Honors
Grade Level8
Week #October 25-29
Unit of InstructionUnit Two (B): Congruence of Proofs with Triangle Properties
Standard(s) Taught

 
MAFS.912.G-CO.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.
  • prove theorems about triangles.
  • solve problems using definitions, theorems, postulates, about triangles, including:
    a) Measures of interior angles of a triangle sum to 180°;
    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) Midsegment Theorem
    f) The medians of a triangle meet at a point (centroid).
    g) The angle bisectors of a triangle meet at a point (incenter).
    h) The perpendicular bisectors of a triangle meet at a point (circumcenter).
Classroom Activities

Monday/Tuesday:  

  1. Students will take notes in their ISN on Classifying Triangles
  2. Students will take notes in the ISN on Angle Theorems
  3. We will look at IXL F.3 together
  4. Students will do IXL F.2 and the worksheet on Exterior Angle Theorem

Wednesday:

  • We will go on the Geogebra website to learn about rotational symmetry of regular polygons
  • Students will take notes on rotational symmetry
  • Students will do IXL O.2

Thursday/Friday

  1. Students will discover the Triangle Inequality Theorem using the Geogebra website
  2. Students will take notes on Triangle Inequality Theorem
  3. Students will do IXL M.5
Assignments Due
  • IXL F.2
  • Exterior Angle Theorem worksheet
  • IXL M.5
Additional Resources

All IEP and ESOL accommodations will be provided daily.