Summary
How to name points, lines, line segments, and rays, and identify parallel and perpendicular lines. Mr. J sorts out the geometry vocabulary.
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All ages
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Teaching resources
Discussion questions
Points, lines, segments, and rays are the building blocks of geometry.
- What is the difference between a line and a line segment?
- What does a ray have that a segment doesn't?
- What makes two lines parallel? Perpendicular?
Quick work-a-long
Words to know: point, line, segment, ray, parallel, perpendicular
- Draw and label a line segment and a ray.
- Find parallel and perpendicular lines in the classroom.