Points, lines, segments, rays: 3rd grade math lesson

What this lesson shows

Draw each one and name it by its ends.

The worked example

The lesson works this one step by step: point P, segment BE, ray CD, line FG. Then your kid tries one like it on paper.

The steps

A point is a dot
A segment has 2 endpoints
A ray has 1
A line has none

Helping at home

Mark each point with a dot and a capital letter. A segment stops at both points, a ray gets one arrow past its second point, and a line gets an arrow at both ends. Name a ray from its endpoint.

If your kid gets stuck

Count the endpoints first: 2, 1, or none.

Watch it with Lux

With Lux, this lesson is a narrated video and a printed page your kid works on. Then Lux helps with the same math on their own worksheet, one question at a time.

See how Lux works

Standards

Common Core 4.G.A.1
Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.

Matches standards in 50 statesSee each state's code

Alabama MA19.4.27
Alaska 4.G.1
Arizona 4.G.A.1
Arkansas 3.GM.2, 4.GM.4
California 4.G.A.1
Colorado 4.G.A.1
Connecticut 4.G.A.1
Delaware 4.G.A.1
District of Columbia 4.G.A.1
Florida MA.3.GR.1.1
Georgia 3.GSR.6.1, 4.GSR.7.1, 4.GSR.8.1
Hawaii 4.G.A.1
Idaho 4.G.A.1
Illinois 4.G.A.1
Indiana 3.G.2
Iowa 4.G.A.1
Kansas 4.G.1
Kentucky KY.4.G.1
Louisiana 4.G.A.1
Maine 4.G.A.1
Maryland 4.GR.C.8
Massachusetts 4.G.A.1
Michigan 4.G.A.1
Minnesota 3.3.1.1, 4.3.2.2
Mississippi 4.G.1
Missouri 4.GM.A.1
Montana MT.4.G.1, 4.D2.2, 4.D4.2
Nebraska 1.G.1.c, 4.G.1.a, 4.G.1.b
Nevada 4.G.A.1
New Hampshire 4.G.A.1
New Jersey 4.G.A.1
New Mexico 4.G.A.1
New York NY-4.G.1
North Carolina NC.4.G.1
North Dakota 3.GM.G.1, 4.GM.G.1
Ohio 4.G.1
Oklahoma 2.GM.1.5, 3.GM.1.3, 4.GM.1.1
Oregon 4.GM.A.1
Pennsylvania CC.2.3.4.A.1
Rhode Island 4.G.A.1
South Carolina 3.MGSR.3.1, 3.MGSR.3.2
South Dakota 4.G.A.1
Tennessee 4.G.A.1
Texas 111.6.b.6.A
Utah 4.G.1
Vermont 4.G.A.1
Virginia 1.MG.2e, 4.MG.4a, 4.MG.4b, 4.MG.4c, 4.MG.4d, 4.MG.4e, 4.MG.5b, 4.MG.5f, 5.MG.3a
Washington 4.G.A.1
West Virginia M.4.26
Wisconsin M.4.G.A.1

Points, lines, segments, rays