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Learning Goal
Part of: Experiment with transformations in the plane — 1 of 5 cluster items
Define geometric terms precisely
HSG.CO.A.1
**HSG.CO.A.1**: Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc.
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HSG.CO.A.1: Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc.
What you'll learn
- State precise definitions for angle, circle, perpendicular line, parallel line, and line segment
- Explain how these definitions build on the undefined notions of point, line, distance along a line, and distance around a circular arc
- Distinguish between defined terms (those built from undefined concepts) and undefined terms (accepted without definition)
- Use precise definitions to identify whether given examples satisfy the definition of each term
- Recognize the importance of precision in mathematical definitions and how it differs from informal everyday language
Slides
Interactive presentations perfect for visual learners • 2 slide decks
Slide Video
Watch narrated slides play like a video lesson • Narrated slide playback
Exercises
Practice problems to build fluency and understanding • 1 exercises