1st/2nd Honors Geometry Skinny

What

1st/2nd Honors Geometry Skinny

When

12/2/2022

Standards Addressed:
MGSE.9-12.G.CO.8 Explain how the criteria for triangle congruence (ASA, SAS, and SSS) follow from the definition of congruence in terms of rigid motions. (Extend to include HL and AAS.)
MGSE.9-12.G.SRT.5 Use congruence and similarity criteria for triangles to solve problems and to prove relationships in geometric figures.

Learning Targets/Success Criteria:
1. I can prove two triangles congruent using congruence theorems such as SSS, SAS, AAS, ASA, and HL.
--I can identify congruent and corresponding sides.
--I can identify included and non-included sides.
--I can identify included and non-included angles.
2. I can complete a formal two-column proof to prove two triangles congruent.
--I can list, identify and mark given statements on two triangles.
--I can identify and mark vertical angles, reflexive property, alternate interior angles, definition of a bisector, definition of a midpoint and provide a correspondence statement that verifies those marks.
3. I can prove two triangles congruent using CPCTC.

Introduction/Connection (Bellringer): CPCTC graphic organizer.

Direct Instruction/Guided Practice:
--Review bellringer
--Guide students in complete CPCTC Proofs graphic organizer (attached below as Day 12 CPCTC INB).
--Guide students in completing selected problems in CPCTC Triangle Proofs packet.

Independent Practice/Collaboration/Differentiation:
--Differentiation: Foldable, cloze notes, graphic organizers, one-on-one assistance for struggling students, accelerated problems for more advanced students.
--Collaboration/Independent Practice: students will work in partners to complete Triangle Proofs w/s (attached below)
--students will begin IXL lessons listed below.

Resources: IXL

Assignments:
1. Students will complete Day 9 Congruent Triangles Proofs (attached below): due date TBA
2. Students will complete CPCTC Handout (attached below): due date TBA

***EXTRA CREDIT OPPORTUNITY***
IXL Lessons due date TBA at the beginning of your class period for extra credit. Earn +5 points extra credit for each lesson completed to a 90%. These lessons are worth +15 extra credit on your overall test grade. Lessons MUST be completed by the beginning of your class period on DUE DATE TBA and you MUST reach a 90% to earn the +5 extra credit.
--K2: Proving triangles congruent by SSS and SAS (shortcut: VVZ)
--K4: Proving triangles congruent by ASA and AAS (shortcut: 23Z)
--K7: Proving Triangles Congruent by SSS, SAS, ASA, and AAS (shortcut SZL)