What this lesson shows
Scissors are 22 centimeters and a glue stick is 14. The scissors are 8 centimeters longer.
The worked example
The lesson works this one step by step: 22 centimeters and 14 centimeters, how much more. Then your kid tries one like it on paper.
The steps
- Line them up from 0
- Find the extra part
- Longer minus shorter
Helping at home
Line both up from 0. The longer one goes on past the shorter one: that extra part is how much longer. Subtract the shorter length from the longer.
If your kid gets stuck
Line them up from 0.
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.MD.A.4
Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit.
Matches standards in 44 statesSee each state's code
- Alabama MA19.2.20
- Alaska 2.MD.4
- Arizona 2.MD.A.4
- Arkansas 2.GM.5
- California 2.MD.A.4
- Colorado 2.MD.A.4
- Connecticut 2.MD.A.4
- Delaware 2.MD.A.4
- District of Columbia 2.MD.A.4
- Florida MA.2.M.1.2
- Georgia 2.MDR.5.3
- Hawaii 2.MD.A.4
- Idaho 2.MD.A.4
- Illinois 2.MD.A.4
- Iowa 2.MD.A.4
- Kansas 2.MD.4
- Kentucky KY.2.MD.4
- Louisiana 2.MD.A.4
- Maine 2.MD.A.4
- Maryland 2.GR.A.4
- Massachusetts 2.MD.A.4
- Michigan 2.MD.A.4
- Mississippi 2.MD.4
- Missouri 2.GM.B.7
- Montana MT.2.MD.4
- Nebraska 2.G.2.b
- Nevada 2.MD.A.4
- New Hampshire 2.MD.A.4
- New Jersey 2.M.A.4
- New Mexico 2.MD.A.4
- New York NY-2.MD.4
- North Carolina NC.2.MD.4
- North Dakota 2.GM.M.2
- Ohio 2.MD.4
- Oregon 2.GM.B.7
- Pennsylvania CC.2.4.2.A.1
- Rhode Island 2.MD.A.4
- South Dakota 2.MD.A.4
- Tennessee 2.MD.A.4
- Utah 2.MD.4
- Vermont 2.MD.A.4
- Washington 2.MD.A.4
- West Virginia M.2.18
- Wisconsin M.2.MD.A.4