What this lesson shows
Fixes a mistake
7 + 7 = 14 is even, though 7 is odd. Every double pairs up.
The worked example
The lesson works this one step by step: 7. Then your kid tries one like it on paper.
The steps
- A double is two equal rows
- Every counter has a partner
- Every double is even
Helping at home
Draw the double as two equal rows, one on top of the other. Every counter on top has a partner under it, so a double is always even, even when the number doubled is odd.
If your kid gets stuck
Draw it as two equal rows.
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 2.OA.C.3
Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.
Matches standards in 49 statesSee each state's code
- Alabama MA19.2.3a
- Alaska 2.OA.3
- Arizona 2.OA.C.3
- Arkansas 2.CAR.8
- California 2.OA.C.3
- Colorado 2.OA.C.3
- Connecticut 2.OA.C.3
- Delaware 2.OA.C.3
- District of Columbia 2.OA.C.3
- Florida MA.2.AR.3.1
- Georgia 2.NR.3.1
- Hawaii 2.OA.C.3
- Idaho 2.OA.C.3
- Illinois 2.OA.C.3
- Indiana 2.NS.3
- Iowa 2.OA.C.3
- Kansas 2.OA.3
- Kentucky KY.2.OA.3
- Louisiana 2.OA.C.3
- Maine 2.OA.C.3
- Maryland 2.AT.B.3
- Massachusetts 2.OA.C.3
- Michigan 2.OA.C.3
- Mississippi 2.OA.3
- Missouri 2.RA.B.2.b, 2.RA.B.2.c
- Montana MT.2.OA.3
- Nebraska 2.N.5.d
- Nevada 2.OA.C.3
- New Hampshire 2.OA.C.3
- New Jersey 2.OA.C.3
- New Mexico 2.OA.C.3
- New York NY-2.OA.3.a, NY-2.OA.3.b
- North Carolina NC.2.OA.3.a, NC.2.OA.3.b, NC.2.OA.3.c
- North Dakota 2.AR.OA.6
- Ohio 2.OA.3
- Oklahoma 1.N.3.2, 2.N.1.5
- Oregon 2.OA.C.3
- Pennsylvania CC.2.2.2.A.3
- Rhode Island 2.OA.C.3
- South Carolina 2.PAFR.1.8
- South Dakota 2.OA.C.3
- Tennessee 2.OA.C.3
- Texas 111.4.b.7.A
- Utah 2.OA.3
- Vermont 2.OA.C.3
- Virginia 2.NS.1a, 2.NS.1h, 2.NS.1i, 2.NS.1j
- Washington 2.OA.C.3
- West Virginia M.2.4
- Wisconsin M.2.OA.C.3