Digital SAT Math
Lesson Plan
Isosceles and equilateral triangle properties
Goals / Objectives
Solve for unknown angles and sides in isosceles and equilateral triangles, alone and inside larger figures, including when they are given as algebraic expressions
Apply the base angles theorem: if two sides of a triangle are equal, the angles opposite those sides are equal
Use the converse: if two angles of a triangle are equal, the sides opposite those angles are equal
Use the facts that an equilateral triangle has three 60° angles and three equal sides, each implying the other
Standards
"Use concepts and theorems relating to congruence and similarity of triangles to solve problems." "Know and directly apply relevant theorems such as the: • triangle angle sum theorem."
Academic Vocabulary
Not in our source material
Materials
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Enrichment
This lesson’s brief has no Differentiation
Accommodations
Not in our source material
Anticipatory Set / Bell Work
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Modeling
Check for Understanding
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Guided Practice
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Independent Practice
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Homework
Pacing
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