What this lesson shows
Fixes a mistake
A square has 4 sides and 4 square corners. It belongs with the rectangles too.
The worked example
The lesson works this one step by step: square (question 1). Then your kid tries one like it on paper.
The steps
- A rectangle: 4 sides, 4 square corners
- A square has both
- A square is a rectangle too
Helping at home
A rectangle needs 4 straight sides and 4 square corners. Check a square: it has both, so it is a rectangle too.
If your kid gets stuck
4 sides and 4 square corners?
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.1
Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Identify triangles, quadrilaterals, pentagons, hexagons, and cubes.
Matches standards in 50 statesSee each state's code
- Alabama MA19.2.25a
- Alaska 2.G.1
- Arizona 2.G.A.1
- Arkansas 2.GM.1
- California 2.G.A.1
- Colorado 2.G.A.1
- Connecticut 2.G.A.1
- Delaware 2.G.A.1
- District of Columbia 2.G.A.1
- Florida MA.2.GR.1.1, MA.2.GR.1.2
- Georgia 2.GSR.7.1
- Hawaii 2.G.A.1
- Idaho 2.G.A.1
- Illinois 2.G.A.1
- Indiana 2.G.1
- Iowa 2.G.A.1
- Kansas 2.G.1
- Kentucky KY.2.G.1, KY.3.G.1.a
- Louisiana 2.G.A.1
- Maine 2.G.A.1
- Maryland 2.GR.B.5
- Massachusetts 2.G.A.1
- Michigan 2.G.A.1
- Minnesota 2.3.1.1, 2.3.1.2, 3.3.1.2
- Mississippi 2.G.1
- Missouri 2.GM.A.1.a, 2.GM.A.1.b
- Montana MT.2.G.1
- Nebraska 2.G.1.b
- Nevada 2.G.A.1
- New Hampshire 2.G.A.1
- New Jersey 2.G.A.1
- New Mexico 2.G.A.1
- New York NY-2.G.1, NY-3.G.1
- North Carolina NC.2.G.1
- North Dakota 1.GM.G.1, 2.GM.G.1, 2.GM.G.3
- Ohio 2.G.1, 3.G.1
- Oklahoma 2.GM.1.1, 2.GM.1.2, 2.GM.1.4, 3.GM.1.1
- Oregon 2.GM.A.1
- Pennsylvania CC.2.3.2.A.1
- Rhode Island 2.G.A.1
- South Carolina 2.MGSR.2.3, 2.MGSR.2.2
- South Dakota 2.G.A.1
- Tennessee 2.G.A.1, 3.G.A.3
- Texas 111.4.b.8.A, 111.4.b.8.B, 111.4.b.8.C
- Utah 2.G.1
- Vermont 2.G.A.1
- Virginia 2.MG.4a, 2.MG.4b, 2.MG.4c, 2.MG.4d, 3.MG.4a, 3.MG.4b, 3.MG.4c, 3.MG.4d, 3.MG.4e, 4.MG.6b
- Washington 2.G.A.1
- West Virginia M.2.25
- Wisconsin M.2.G.A.1