What this lesson shows
12 ÷ 3 as 3 groups, how many in each, and as groups of 3, how many groups.
The worked example
The lesson works this one step by step: 12 ÷ 3. Then your kid tries one like it on paper.
The steps
- Share into groups
- Or make groups of a size
- Same answer both ways
Helping at home
Draw it two ways. Sharing: draw the groups first and deal the dots out one at a time. Making groups: loop the dots into groups of the second number and count the loops. Both give the same answer.
If your kid gets stuck
Sharing: draw the groups first.
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.OA.A.2
Interpret whole-number quotients of whole numbers, e.g., interpret 56 ÷ 8 as the number of objects in each share when 56 objects are partitioned equally into 8 shares, or as a number of shares when 56 objects are partitioned into equal shares of 8 objects each. For example, describe a context in which a number of shares or a number of groups can be expressed as 56 ÷ 8.
Matches standards in 48 statesSee each state's code
- Alabama MA19.3.2
- Alaska 3.OA.2
- Arizona 3.OA.A.2
- California 3.OA.A.2
- Colorado 3.OA.A.2
- Connecticut 3.OA.A.2
- Delaware 3.OA.A.2
- District of Columbia 3.OA.A.2
- Florida MA.3.NSO.2.2
- Hawaii 3.OA.A.2
- Idaho 3.OA.A.2
- Illinois 3.OA.A.2
- Indiana 3.CA.4
- Iowa 3.OA.A.2
- Kansas 3.OA.2
- Kentucky KY.3.OA.2
- Louisiana 3.OA.A.2
- Maine 3.OA.A.2
- Maryland 3.NOS.B.2, 3.NOS.B.3
- Massachusetts 3.OA.A.2
- Michigan 3.OA.A.2
- Minnesota 3.1.2.3
- Mississippi 3.OA.2
- Missouri 3.RA.A.2, 3.RA.A.3
- Montana MT.3.OA.2.a, MT.3.OA.2.b
- Nebraska 3.A.1.f
- Nevada 3.OA.A.2
- New Hampshire 3.OA.A.2
- New Jersey 3.OA.A.2
- New Mexico 3.OA.A.2
- New York NY-3.OA.2
- North Carolina NC.3.OA.2.a
- North Dakota 3.AR.OA.5
- Ohio 3.OA.2
- Oklahoma K.N.3.1, 1.N.3.2, 3.N.2.1, 3.N.2.6
- Oregon 3.OA.A.2
- Pennsylvania CC.2.2.3.A.1
- Rhode Island 3.OA.A.2
- South Carolina 3.PAFR.1.2
- South Dakota 3.OA.A.2
- Tennessee 3.OA.A.2
- Texas 111.4.b.6.B, 111.5.b.4.D, 111.5.b.4.E, 111.5.b.4.H
- Utah 3.OA.2
- Vermont 3.OA.A.2
- Virginia 3.CE.2a
- Washington 3.OA.A.2
- West Virginia M.3.2
- Wisconsin M.3.OA.A.2
More in this unit
- Equal groups and arrays
- Groups or how many in each?
- Equal jumps on a number line
- Turn the array
- Facts from facts you know
- Add the parts
- One digit times two digits
- Multiply both parts
- Three factors, any order
- Times tens and hundreds
- Counting zeros fails
- One array, four facts
- True or false?
- The answer can go first
- The unknown anywhere
- Even or odd?
- The ones digit decides
- Is it a multiple?
- A number is its own multiple
- Patterns from a rule
- Position is not value
- Two-step word problems
- Finish the second step
- One pattern, two ways