# Q2 W7 Jan 5-Jan 8 Pre-Algebra

Teacher Stephanie Durrance 8th Grade Math (Pre-Algebra) 8th 7 Focus 7: Angle-Pair Relationships
Standard(s) Taught

MAFS.8.G.1.5: Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles.

Learning Targets and Learning Criteria

• informally prove the angle-sum theorem, the properties of angles when parallel lines are cut by a transversal and the angle-angle criterion for similar triangles. • prove that the sum of any triangle’s interior angles will have the same measure as a straight angle. • make conjectures regarding the relationships and measurements of the angles created when two parallel lines are cut by a transversal. • apply proven relationships to establish minimal properties to justify similarity. • present informal arguments as to whether or not triangles are similar based on Angle-Angle criterion

Classroom Activities

Classroom Activities:

Monday:
No School

Wednesday (Early Release):
Bellringer:
Brain Teaser (5 min)
Whole Group:
ISN – P. 20. Angle-Pair Relationships
Independent:
Khan Academy – Angle relationships with parallel lines (7 questions)

Thursday:
Bellringer:
Brain Teaser (5 min)
Whole Group:
Review Notes on Angle-Pair Relationships
Small Groups:
Independent:
Khan Academy – Equation Practice with Angles (4 questions)

All IEP and ESOL accommodations provided daily.

Assignments Due

Khan Academy videos – type any topic in search bar followed by Khan Academy to find an instructional video for additional support. https://www.khanacademy.org/

IXL – Provides support for any grade level math standard.

Edgenuity – https://www.edgenuity.com/