What this lesson shows
Fixes a mistake
8/3 is 8 thirds, one number, not "8 over 3".
The worked example
The lesson works this one step by step: 8/3. Then your kid tries one like it on paper.
The steps
- The bottom names the piece
- The top counts them
- One number, one point
Helping at home
Say the bottom number as the name of the piece, then the top as how many: 8 thirds, not 8 over 3. It is one number, so it marks one point on a number line.
If your kid gets stuck
Say the name of the piece out loud.
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.1
Understand a fraction 1/b as the quantity formed by 1 part when a whole is partitioned into b equal parts; understand a fraction a/b as the quantity formed by a parts of size 1/b.
Matches standards in 50 statesSee each state's code
- Alabama MA19.3.13
- Alaska 3.NF.1
- Arizona 3.NF.A.1, 3.NF.A.2.c
- Arkansas 3.NPV.6, 3.NPV.10
- California 3.NF.A.1
- Colorado 3.NF.A.1
- Connecticut 3.NF.A.1
- Delaware 3.NF.A.1
- District of Columbia 3.NF.A.1
- Florida MA.3.FR.1.1, MA.3.FR.1.2, MA.3.FR.1.3
- Georgia 3.NR.4.1, 3.NR.4.3
- Hawaii 3.NF.A.1
- Idaho 3.NF.A.1
- Illinois 3.NF.A.1
- Indiana 4.NS.2, 5.NS.2, 3.NS.2
- Iowa 3.NF.A.1
- Kansas 3.NF.1
- Kentucky KY.3.NF.1
- Louisiana 3.NF.A.1
- Maine 3.NF.A.1
- Maryland 3.NOS.F.10.b, 3.NOS.F.11
- Massachusetts 3.NF.A.1
- Michigan 3.NF.A.1
- Minnesota 3.1.3.1
- Mississippi 3.NF.1
- Missouri 3.NF.A.1, 3.NF.A.2.a, 3.NF.A.2.b
- Montana MT.3.NF.1
- Nebraska 3.N.2.b
- Nevada 3.NF.A.1
- New Hampshire 3.NF.A.1
- New Jersey 3.NF.A.1
- New Mexico 3.NF.A.1
- New York NY-3.NF.1
- North Carolina NC.3.NF.1.a, NC.3.NF.1.b, NC.3.NF.2.a
- Ohio 3.NF.1
- Oklahoma 3.N.3.1, 3.N.3.2, 3.N.3.3
- Oregon 3.NF.A.1
- Pennsylvania CC.2.1.3.C.1
- Rhode Island 3.NF.A.1
- South Carolina 3.NR.2.2, 3.NR.2.4, 3.NR.2.1
- South Dakota 3.NF.A.1
- Tennessee 3.NF.A.1
- Texas 111.4.b.3.C, 111.5.b.3.A, 111.5.b.3.C, 111.5.b.3.D, 111.5.b.3.E, 111.6.b.3.A
- Utah 3.NF.1.a, 3.NF.1.b
- Vermont 3.NF.A.1
- Virginia 2.NS.3d, 2.NS.3e.i, 2.NS.3e.iii, 3.NS.3a.i, 3.NS.3a.iii, 3.NS.3b, 3.NS.3c, 2.NS.3c
- Washington 3.NF.A.1
- West Virginia M.3.15
- Wisconsin M.3.NF.A.1
- Wyoming 3.NF.1