What this lesson shows
Same denominator: count parts. Same numerator: compare piece size.
The worked example
The lesson works this one step by step: 3/8 ○ 5/8. Then your kid tries one like it on paper.
The steps
- Same bottom: count the pieces
- Same top: compare piece size
- Check on same-size bars
Helping at home
First check which number matches. If the bottoms match, the pieces are the same size, so the bigger top wins. If the tops match, the count is the same, so the smaller bottom has the bigger pieces and wins. Draw same-size bars to check.
If your kid gets stuck
Write <, >, or =. Which number matches?
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.3d
Compare two fractions with the same numerator or the same denominator by reasoning about their size. Recognize that comparisons are valid only when the two fractions refer to the same whole. Record the results of comparisons with the symbols >, =, or <, and justify the conclusions, e.g., by using a visual fraction model.
Matches a standard in all 50 states and DCSee each state's code
- Alabama MA19.3.15a, MA19.3.15b
- Alaska 3.NF.3.d
- Arizona 3.NF.A.3.d *
- Arkansas 3.NPV.5, 3.NPV.8, 3.NPV.9
- California 3.NF.A.3
- Colorado 3.NF.A.3.d
- Connecticut 3.NF.A.3
- Delaware 3.NF.A.3
- District of Columbia 3.NF.A.3
- Florida MA.3.FR.2.1
- Georgia 3.NR.4.2, 4.NR.4.2
- Hawaii 3.NF.A.3
- Idaho 3.NF.A.2.a, 3.NF.A.3.d
- Illinois 3.NF.A.3
- Indiana 3.NS.5
- Iowa 3.NF.A.3.d
- Kansas 3.NF.3.d
- Kentucky KY.3.NF.3.b, KY.3.NF.3.d
- Louisiana 3.NF.A.3.d
- Maine 3.NF.A.3d
- Maryland 3.NOS.F.13.d
- Massachusetts 3.NF.A.3.d
- Michigan 3.NF.A.3
- Minnesota 3.1.3.2, 3.1.3.3
- Mississippi 3.NF.3.d
- Missouri 3.NF.A.6, 3.NF.A.7
- Montana MT.3.NF.3.a, MT.3.NF.3.d, MT.3.NF.3.e
- Nebraska 3.N.2.c, 3.N.2.f
- Nevada 3.NF.A.3
- New Hampshire 3.NF.A.3
- New Jersey 3.NF.A.3d
- New Mexico 3.NF.A.3
- New York NY-3.NF.3.d
- North Carolina NC.3.NF.4
- North Dakota 3.NO.NF.5
- Ohio 3.NF.2.b, 3.NF.3.d
- Oklahoma 3.N.3.4
- Oregon 3.NF.A.3
- Pennsylvania CC.2.1.3.C.1
- Rhode Island 3.NF.A.3.d
- South Carolina 3.NR.2.6, 3.NR.2.5
- South Dakota 3.NF.A.3.d
- Tennessee 3.NF.A.3.d
- Texas 111.4.b.3.B, 111.5.b.3.B, 111.5.b.3.H
- Utah 3.NF.3.d
- Vermont 3.NF.A.3
- Virginia 2.NS.3b, 2.NS.3e.ii, 2.NS.3f, 3.NS.3a.ii, 3.NS.3f, 4.NS.3a, 4.NS.3b, 3.NS.3g
- Washington 3.NF.A.3
- West Virginia M.3.16, M.3.17
- Wisconsin M.3.NF.A.3, M.3.NF.A.2
- Wyoming 3.NF.3d, 3.NFP.3.D