3rd Block Geometry

What

3rd Block Geometry

When

2/6/2023

Standards Addressed: MGSE.9-12.G.CO.9 Prove theorems about lines and angles. Theorems include vertical angles are congruent, when a transversal crosses parallel lines, alternate exterior angles are congruent and corresponding angles are congruent.; points on a perpendicular bisector of a line segment are exactly those equidistance from the segment’s endpoints.

Learning Targets /Success Criteria I can solve problems involving parallel lines cut by a transversal.
• I can recognize and apply properties of the alternate interior angle theorem.
• I can recognize and apply properties of the alternate exterior angle theorem.
• I can recognize and apply properties of the same side interior angle theorem.
• I can recognize and apply properties of corresponding angles postulate.

Introduction/Connection (Activator): students will complete exploratory activity finding angle measures given parallel and non-parallel lines: https://teleskola.mt/masking-tape-fun-measuring-angles-using-a-protractor/

Direct Instruction/Guided Practice
--Students will walk around each other's desks and observe difference/similarities among their desks--capture compare/contrast on board
--Guide students in completing foldable on parallel lines cut by a transversal (attached below).
--Review whole group Similarity & Geometric Relationships handout reviewing angle pair relationships.
--Review whole group selected problems on Parallel Lines w/ a Transversal practice w/s (attached below)


Independent Practice/Collaboration/Differentiation
--Differentiation: foldable, color code congruent angles, provide one-on-one assistance for struggling students, provide material for accelerated learners, student-led review/teaching.
--Students will complete selected problems on Parallel Lines w/ a Transversal practice w/s.

Summarizer/CFU: round robin: Naming angle pairs: identify a pair of corresponding angles, etc.

Assignment: TBD