What this lesson shows
Fixes a mistake
A square is one flat face. A cube is solid, with a square on every side. A can is a cylinder, not a circle.
The worked example
The lesson works this one step by step: cube (question 1). Then your kid tries one like it on paper.
The steps
- A square is flat
- A cube is solid
- Its sides are squares
- A can is a cylinder
Helping at home
Read each box aloud. Hold a block and a sticky note: the note is a flat square, the block is a cube. Your kid names each solid on the page.
If your kid gets stuck
Flat or solid? A solid has its own name.
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 K.G.B.4
Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts (e.g., number of sides and vertices/"corners") and other attributes (e.g., having sides of equal length). - Common Core K.G.A.3
Identify shapes as two-dimensional (lying in a plane, "flat") or three-dimensional ("solid").
Matches standards in 50 statesSee each state's code
- Alabama MA19.K.21, MA19.K.20
- Alaska K.G.4, K.G.3
- Arizona K.G.B.4, K.G.A.3
- Arkansas K.GM.3, K.GM.4
- California K.G.B.4, K.G.A.3
- Colorado K.G.B.4, K.G.A.3
- Connecticut K.G.B.4, K.G.A.3
- Delaware K.G.B.4, K.G.A.3
- District of Columbia K.G.B.4, K.G.A.3
- Florida MA.K.GR.1.2, MA.K.GR.1.3
- Georgia K.GSR.8.1
- Hawaii K.G.B.4, K.G.A.3
- Idaho K.G.B.4, K.G.A.3
- Illinois K.G.B.4, K.G.A.3
- Indiana K.G.1
- Iowa K.G.B.4, K.G.A.3
- Kansas K.G.4, K.G.3
- Kentucky KY.K.G.4, KY.K.G.3
- Louisiana K.G.B.4, K.G.A.3
- Maine K.G.B.4, K.G.A.3
- Maryland K.GR.B.7, K.GR.B.6
- Massachusetts K.G.B.4, K.G.A.3
- Michigan K.G.B.4, K.G.A.3
- Mississippi K.G.4, K.G.3
- Missouri K.GM.C.8
- Montana MT.K.G.4, MT.K.G.3
- Nebraska K.G.1.d
- Nevada K.G.B.4, K.G.A.3
- New Hampshire K.G.B.4, K.G.A.3
- New Jersey K.G.B.4, K.G.A.3
- New Mexico K.G.B.4, K.G.A.3
- New York NY-K.G.4, NY-K.G.3
- North Carolina NC.K.G.4, NC.K.G.3
- North Dakota K.GM.G.3, 2.GM.G.2, K.GM.G.1, K.GM.G.2
- Ohio K.G.4, K.G.3
- Oklahoma K.GM.1.2, K.GM.1.3, 4.GM.1.3
- Oregon K.GM.B.4, K.GM.A.3
- Pennsylvania CC.2.3.K.A.2, CC.2.3.K.A.1
- Rhode Island K.G.B.4, K.G.A.3
- South Carolina 1.MGSR.2.5, K.MGSR.2.1, 1.MGSR.2.4
- South Dakota K.G.B.4, K.G.A.3
- Tennessee K.G.B.4, K.G.A.3
- Texas 111.2.b.6.C, 111.2.b.6.D, 111.2.b.6.E
- Utah K.G.4, K.G.3
- Vermont K.G.B.4, K.G.A.3
- Virginia K.MG.2b, K.MG.2c, K.MG.2e, 2.MG.4c, 2.MG.4d, 4.MG.6c
- Washington K.G.B.4, K.G.A.3
- West Virginia M.K.23, M.K.22
- Wisconsin M.K.G.B.4, M.K.G.A.3
- Wyoming K.G.4