Q3, W8: February 21-25 Geometry

TeacherKristin Andreason
Subject AreaGeometry Honors
Grade Level8
Week #February 21-25
Unit of InstructionUnit 5: Quadrilaterals
Standard(s) Taught

MAFS.912.G-CO.3.11:  Prove theorems about parallelograms; use theorems about parallelograms to solve problems. (Theorems include: opposite sides are congruent, opposite angles are congruent, the diagonals of a parallelogram bisect each other, and conversely, rectangles are parallelograms with congruent diagonals.)

Learning Targets and Learning Criteria

apply theorems, postulates, or definitions to prove theorems about parallelograms (including rhombus, rectangle, square), including:

     a)  Prove opposite sides of a parallelogram are congruent;

     b)  Prove opposite angles of a parallelogram are congruent;

     c)  Prove the diagonals of a parallelogram bisect each other;

     d)  Prove that rectangles are parallelograms with congruent diagonals.

  •  Use properties of parallelograms, NOT assumptions, to correctly identify figures.
Classroom Activities


  1. Students will present their posters of proofs about theorems of parallelograms
  2. Students will do the Square and Rhombi Partner Activity
  3. Students will do a Quadrilaterals Partner Worksheet
  4. Students will do some of IXL N. New (classify shapes on the coordinate plane) in groups
  5. We will play Quizlet Live


  1. We will review for the summative on Quadrilaterals
  2. We will look at IXL’s N.8, N.9, and the checkpoint on Parallelogram Theorems


  1. We will review properties of quadrilaterals on Quizlet 
  2. Students will take the Summative on Quadrilaterals
Assignments Due
  • Square and Rhombi partner activity
  • Poster on proof of theorem of parallelograms
  • Quadrilaterals partner worksheet
  • Summative on Quadrilaterals
Additional Resources

All IEP and ESOL accommodations are provided daily.