Lesson Plan: Straight Lines, Line Segments, and Rays Mathematics • 3rd Grade

This lesson plan includes the objectives and exclusions of the lesson teaching students how to identify points, lines, rays, line segments, and endpoints.


Students will be able to

  • identify whether a figure shows a point, a line segment, a ray, or a line,
  • name these objects for example, “the line A”,
  • draw line segments, rays, and lines passing through given points,
  • determine points that lie on a given line, line segment, or ray.


Students will not cover

  • representing lines, line segments, and rays with mathematical symbols.

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