4.MATH.6.C
Apply knowledge of right angles to identify acute, right, and obtuse triangles.
Grade 4 · Texas Essential Knowledge and Skills (TEKS) · TEKS 2012
Standard Unwrapping
AI-generated as a starting point — sign in to edit.Vocabulary
right anglesacute trianglesright trianglesobtuse trianglestriangles
Skills
- identify (right angles in triangles) #dok1
- identify (acute, right, and obtuse triangles based on angles) #dok2
- apply knowledge (of right angles to classify triangles) #dok2
- distinguish (triangles by angle measurements) #dok2
Learning Targets
- I can identify right angles in triangles. #dok1
- I can recognize and name acute, right, and obtuse triangles by examining their angles. #dok2
- I can apply what I know about right angles to classify triangles as acute, right, or obtuse. #dok2
Big Ideas
- Triangles can be classified based on the size of their angles.
- Understanding right angles helps to accurately identify and classify different types of triangles.
Essential Questions
- How can you use the sizes of a triangle’s angles to classify the triangle?
- What is the difference between acute, right, and obtuse triangles?
- Why is it important to know how to identify right angles in triangles?
- How does recognizing right angles help you classify other types of angles in triangles?