What this lesson shows
A field trip: some drop out, the rest split into equal groups. One equation per step.
The worked example
The lesson works this one step by step: 30 kids, 6 stay, 4 vans. Then your kid tries one like it on paper.
The steps
- What do we find?
- Step 1
- Step 2
- Check by working back
Helping at home
Read the story twice. Say what the question asks before any math. Write one equation for each step, then check by working back to the story’s first number.
If your kid gets stuck
What does the question ask for?
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.D.8
Solve two-step word problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
Matches a standard in all 50 states and DCSee each state's code
- Alabama MA19.3.3, MA19.3.8
- Alaska 3.OA.8
- Arizona 3.OA.D.8 *, 3.OA.D.10
- Arkansas 3.CAR.6, 3.CAR.7
- California 3.OA.D.8
- Colorado 3.OA.D.8
- Connecticut 3.OA.D.8
- Delaware 3.OA.D.8
- District of Columbia 3.OA.D.8
- Florida MA.3.AR.1.2
- Georgia 3.PAR.3.6
- Hawaii 3.OA.D.8
- Idaho 3.OA.A.3, 3.OA.D.8.a, 3.OA.D.8.b
- Illinois 3.OA.D.8
- Indiana 3.CA.2, 3.CA.7
- Iowa 3.OA.D.8
- Kansas 3.OA.8
- Kentucky KY.3.OA.8
- Louisiana 3.OA.D.8
- Maine 3.OA.D.8
- Maryland 3.NOS.D.6, 3.AT.A.2.a, 3.AT.A.2.b, 4.NOS.B.3.a
- Massachusetts 3.OA.D.8
- Michigan 3.OA.D.8
- Minnesota 3.1.2.2, 3.1.2.4
- Mississippi 3.OA.8
- Missouri 3.RA.D.9, 3.RA.D.10
- Montana MT.3.OA.8
- Nebraska 3.A.1.b, 3.A.1.c, 3.A.1.d
- Nevada 3.OA.D.8
- New Hampshire 3.OA.D.8
- New Jersey 3.OA.D.8
- New Mexico 3.OA.D.8
- New York NY-3.OA.3, NY-3.OA.8.a, NY-3.OA.8.b
- North Carolina NC.3.OA.8, NC.3.NBT.2.a
- North Dakota 3.AR.OA.3
- Ohio 3.OA.8
- Oklahoma 2.N.2.3, 3.N.2.4, 3.N.2.5
- Oregon 3.OA.A.3, 3.OA.D.8
- Pennsylvania CC.2.2.3.A.4
- Rhode Island 3.OA.D.8
- South Carolina 3.PAFR.2.2
- South Dakota 3.OA.D.8
- Tennessee 3.OA.A.3, 3.OA.D.8
- Texas 111.5.b.4.B, 111.5.b.4.K, 111.5.b.5.A, 111.5.b.5.B
- Utah 3.OA.8.a, 3.OA.8.b, 3.OA.8.c
- Vermont 3.OA.D.8
- Virginia 3.CE.1a, 3.CE.1b, 3.CE.1e, 3.CE.2e, 5.PFA.2a
- Washington 3.OA.D.8
- West Virginia M.3.8
- Wisconsin M.3.OA.D.7, M.3.NBT.A.1
- Wyoming 3.OA.8a, 3.OA.8b, 3.OAP.8.A, 3.OAP.8.B
More in this unit
- Equal groups and arrays
- Groups or how many in each?
- Two kinds of division
- 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
- Finish the second step
- One pattern, two ways