Unit Standards: MCC8.G4, MCC8.G5
Crosswalk Coach Connection:
-- Lesson 26 - Similar Triangles
-- Lesson 27 - Interior and Exterior Angles of Triangles
-- Lesson 28 - Parallel lines and Transversals
This week in math, we will complete the last part of unit 1 with a study of angle relationships and triangles. Specifically, students will recall the angle relationships they learned last year and develop an understanding of the angle pairs that are formed when a transversal intersects a set of parallel lines. In addition, they will explore similar triangles and learn how the angle-angle criterion and triangle-angle sum theorem can be used to prove triangles are similar.
As I mentioned in previous posts, vocabulary is imperative to students' understanding in math. Students need to know and understand the following terms:
- alternate interior angles
- alternate exterior angles
- corresponding angles
- vertical angles
- adjacent angles
- supplementary angles
- complementary angles
- parallel lines
- perpendicular lines
- intersecting lines
- angle-angle criterion
- triangle angle sum theorem
- corresponding angles
- corresponding sides
- similar figures
- scale factor
- congruent
See the outline below for this week's agenda. The agenda is subject to change based on students' needs.
MON
- Lines & Angle Relationships Vocabulary
- Angle pairs formed when parallel lines are cut by a transversal
- HW: Identify angle relationships
TUE
- Use angle relationships to find angle measurements
- Setup & solve algebraic equations
- HW: Find angle measurements & justify (Measuring UP Lesson 47)
WED :
- Triangle angle sum theorem & exterior angle theorem (setup and solve equations)
- HW: Practice with Triangles - (Measuring Up Lesson 48)
THU:
- Vocab Quiz
- Triangle Similarity
- Begin City Project
- HW: Similar Triangles
FRI:
- Complete City Project
Advanced Math
In addition to the information listed above, students in advanced math will also learn about ratio of segments and proving parallel lines. They will use proportions to find the length of line segments formed when multiple transversals intersect at a set of parallel lines. They will also use information about angle measurements to prove that lines are or are not parallel. The agenda for advanced math is listed below.
MON
- Lines & Angle Relationships Vocabulary
- Angle pairs formed when parallel lines are cut by a transversal
- Use angle relationships to find angle measurements (setup & solve algebraic equations)
- HW: Use angle relationships to find measurements (Measuring UP 47)
TUE:
- Using angle relationships to find angle measurements and determine if lines are parallel
- HW: Practice finding angle measurements & providing proof.
WED :
- Vocab Quiz
- Ratio of Segments
- HW: Ratio of Segments Practice
THU:
- Triangle angle sum theorem & exterior angle theorem (setup and solve equations)
- Triangle Similarity
- HW: Practice with Triangles - (Measuring Up Lesson 48)
FRI:
- Lines & Angles Performance Task