Lesson: Types of Lines

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Lesson Objective

SWBAT identify lines, line segments, rays, perpendicular, intersecting, and parallel lines.

Lesson Plan


State Standard:


Standard Name:

3-D Shapes


SWBAT identify lines, line segments, rays, perpendicular, intersecting, and parallel lines.

Essential Question:

Where do you see different types of lines in the world around us?

Word Wall Words:

Perpendicular, intersecting, parallel

Do Now:

Draw all 6 types of lines we will be discussing today and see which ones students can identify. Have them describe the difference between each type of line. For example, one has a dot on one end and an arrow on the other, and another has dots on both ends.


We have just drawn several different types of lines, but today we are going to talk about the different things that they mean.

Direct Instruction:

First, teach students the hand signals that go with each line. For a lines, hold out both arms parallel to the ground with index finger pointed out. For line segement, hold arms the same way but make a fist with both hands rather than pointing out. For a ray, have a fist on one hand and a finger pointing out on the other. For perpendicular, hold up both arms intersecting at 90 degree angles; for intersecting lines, have two arms intersect – can make 90 degree angles or not. And parallel lines, hold two arms going parallel.


Guided Practice:

Call out a type of line, and the students have to hold up the right arms. Start out slow and get faster.

Independent Practice:

Complete worksheet identifying the different types of lines.

Math Journal:



Quickly review the types of lines with arm motions.

Center Options:




Have pictures of the different lines at struggling students desks.

Lesson Resources

Points Lines Rays Practice   Classwork


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