What this lesson shows
Split a rectangle into same-size squares in rows and columns, then count them row by row.
The worked example
The lesson works this one step by step: 3 rows of 4. Then your kid tries one like it on paper.
The steps
- Lines across: rows
- Lines down: columns
- Same-size squares
- Count row by row
Helping at home
Draw lines across, the same space apart, to make the rows, then lines down to make the columns. Every square comes out the same size. Count row by row, adding one row each time.
If your kid gets stuck
Lines across make rows. Lines down make columns.
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.G.A.2
Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.
Matches standards in 41 statesSee each state's code
- Alabama MA19.2.26
- Alaska 2.G.2
- Arizona 2.G.A.2
- Arkansas 2.GM.8
- California 2.G.A.2
- Colorado 2.G.A.2
- Connecticut 2.G.A.2
- Delaware 2.G.A.2
- District of Columbia 2.G.A.2
- Hawaii 2.G.A.2
- Idaho 2.G.A.2
- Illinois 2.G.A.2
- Indiana 2.G.3
- Iowa 2.G.A.2
- Kansas 2.G.2
- Kentucky KY.2.G.2
- Louisiana 2.G.A.2
- Maine 2.G.A.2
- Massachusetts 2.G.A.2
- Michigan 2.G.A.2
- Mississippi 2.G.2
- Missouri 2.GM.A.2
- Montana MT.2.G.2
- Nebraska 2.G.1.c
- Nevada 2.G.A.2
- New Hampshire 2.G.A.2
- New Jersey 2.G.A.2
- New Mexico 2.G.A.2
- New York NY-2.G.2
- Ohio 2.G.2
- Oregon 2.GM.A.2
- Rhode Island 2.G.A.2
- South Dakota 2.G.A.2
- Tennessee 2.G.A.2
- Texas 111.4.b.9.F
- Utah 2.G.2
- Vermont 2.G.A.2
- Washington 2.G.A.2
- West Virginia M.2.26
- Wisconsin M.2.G.A.2
- Wyoming 2.G.2