What this lesson shows
1/2 and 2/4 land on one point of two given lines.
The worked example
The lesson works this one step by step: 1/2 ○ 2/4. Then your kid tries one like it on paper.
The steps
- Two lines the same length
- Mark each fraction
- Same point, equal fractions
Helping at home
Draw two number lines from 0 to 1, the same length, one cut for each bottom number. Mark each fraction by counting jumps from 0. If both points line up, the fractions are equal.
If your kid gets stuck
Do the two points line up?
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.
Standards
- Common Core 3.NF.A.3a
Understand two fractions as equivalent (equal) if they are the same size, or the same point on a number line.
Matches standards in 48 statesSee each state's code
- Alabama MA19.3.15a
- Alaska 3.NF.3.a
- Arizona 3.NF.A.3.a, 3.NF.A.3.b
- Arkansas 3.NPV.11
- California 3.NF.A.3
- Colorado 3.NF.A.3.a
- Connecticut 3.NF.A.3
- Delaware 3.NF.A.3
- District of Columbia 3.NF.A.3
- Florida MA.3.FR.2.2
- Georgia 3.NR.4.4
- Hawaii 3.NF.A.3
- Idaho 3.NF.A.3.a, 3.NF.A.3.b
- Illinois 3.NF.A.3
- Indiana 3.NS.4
- Iowa 3.NF.A.3.a, 3.NF.A.3.b
- Kansas 3.NF.3.a
- Kentucky KY.3.NF.3.a, KY.3.NF.3.b
- Louisiana 3.NF.A.3.a
- Maine 3.NF.A.3a
- Maryland 3.NOS.F.13.a, 3.NOS.F.13.b
- Massachusetts 3.NF.A.3.a
- Michigan 3.NF.A.3
- Mississippi 3.NF.3.a
- Missouri 3.NF.A.4, 3.NF.A.5
- Montana MT.3.NF.3.a, MT.3.NF.3.b
- Nebraska 3.N.2.d
- Nevada 3.NF.A.3
- New Hampshire 3.NF.A.3
- New Jersey 3.NF.A.3a, 3.NF.A.3b
- New Mexico 3.NF.A.3
- New York NY-3.NF.3.a, NY-3.NF.3.b
- North Dakota 3.NO.NF.3
- Ohio 3.NF.3.a
- Oregon 3.NF.A.3
- Pennsylvania CC.2.1.3.C.1
- Rhode Island 3.NF.A.3.a
- South Carolina 3.NR.2.3, 3.NR.2.5
- South Dakota 3.NF.A.3.a
- Tennessee 3.NF.A.3.a
- Texas 111.5.b.3.F, 111.5.b.3.G
- Utah 3.NF.3.a
- Vermont 3.NF.A.3
- Virginia 3.NS.3h
- Washington 3.NF.A.3
- West Virginia M.3.17
- Wisconsin M.3.NF.A.3
- Wyoming 3.NF.3a, 3.NF.3b, 3.NFP.3.A, 3.NFP.3.B