6.MATH.8.A
Extend previous knowledge of triangles and their properties to include the sum of angles of a triangle, the relationship between the lengths of sides and measures of angles in a triangle, and determining when three lengths form a triangle.
Grade 6 · Texas Essential Knowledge and Skills (TEKS) · TEKS 2012
Standard Unwrapping
AI-generated as a starting point — sign in to edit.Vocabulary
trianglespropertiessum of anglesrelationshiplengths of sidesmeasures of anglestriangle
Skills
- extend knowledge (triangles and their properties) #dok2
- determine (sum of angles in a triangle) #dok1
- analyze (relationship between side lengths and angle measures in a triangle) #dok2
- decide (when three lengths form a triangle) #dok2
Learning Targets
- I can determine the sum of the angles in a triangle. #dok1
- I can describe the relationship between the lengths of the sides and the measures of the angles in a triangle. #dok2
- I can explain how to decide if three lengths can form a triangle. #dok2
- I can analyze a triangle to connect side lengths and angle measures. #dok2
- I can justify whether three given lengths create a triangle using triangle inequality. #dok3
Big Ideas
- The sum of the angles in any triangle is always a specific value.
- There are specific conditions that determine when three side lengths can form a triangle.
Essential Questions
- What is always true about the sum of the angles in a triangle?
- How do the lengths of the sides affect the measures of the angles in a triangle?
- How can you determine if three given side lengths will form a triangle?
- Why can’t every set of three lengths create a triangle?
- How are the properties of a triangle reflected in its side lengths and angles?