What this lesson shows
A pencil is 6 paper clips long, clips end to end with no gaps and no overlaps.
The worked example
The lesson works this one step by step: a pencil 6 paper clips long. Then your kid tries one like it on paper.
The steps
- Start at one end
- Clips end to end
- No gaps, no overlaps
- Count, and say the unit
Helping at home
Read each box aloud. Your kid counts the clips under the thing and says the number with the unit: "5 paper clips long." Measure a spoon with real clips too.
If your kid gets stuck
Count the clips. Say "paper clips long".
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 1.MD.A.2
Express the length of an object as a whole number of length units, by laying multiple copies of a shorter object (the length unit) end to end; understand that the length measurement of an object is the number of same-size length units that span it with no gaps or overlaps. Limit to contexts where the object being measured is spanned by a whole number of length units with no gaps or overlaps.
Matches standards in 49 statesSee each state's code
- Alabama MA19.1.18
- Alaska 1.MD.2
- Arizona 1.MD.A.2
- Arkansas 1.GM.3
- California 1.MD.A.2
- Colorado 1.MD.A.2
- Connecticut 1.MD.A.2
- Delaware 1.MD.A.2
- District of Columbia 1.MD.A.2
- Florida MA.K.M.1.3
- Georgia 1.MDR.6.1
- Hawaii 1.MD.A.2
- Idaho 1.MD.A.2
- Illinois 1.MD.A.2
- Iowa 1.MD.A.2
- Kansas 1.MD.2
- Kentucky KY.1.MD.2
- Louisiana 1.MD.A.2
- Maine 1.MD.A.2
- Maryland 1.GR.A.2
- Massachusetts 1.MD.A.2
- Michigan 1.MD.A.2
- Minnesota 1.3.2.1
- Mississippi 1.MD.2
- Missouri 1.GM.B.7
- Montana MT.1.MD.2
- Nebraska 1.G.2.a
- Nevada 1.MD.A.2
- New Hampshire 1.MD.A.2
- New Jersey 1.M.A.2
- New Mexico 1.MD.A.2
- New York NY-1.MD.2
- North Carolina NC.1.MD.2.a, NC.1.MD.2.b
- North Dakota 1.GM.M.1
- Ohio 1.MD.2
- Oklahoma 1.GM.2.1, 1.GM.2.2, 1.GM.2.4
- Oregon 1.GM.B.5
- Pennsylvania CC.2.4.1.A.1
- Rhode Island 1.MD.A.2
- South Carolina 1.MGSR.1.2
- South Dakota 1.MD.A.2
- Tennessee 1.MD.A.2
- Texas 111.3.b.7.A, 111.3.b.7.B, 111.3.b.7.D
- Utah 1.MD.2
- Vermont 1.MD.A.2
- Virginia 1.MG.1a.i
- Washington 1.MD.A.2
- West Virginia M.1.16
- Wisconsin M.1.MD.A.2