Identify, name, and describe 3D shapes (sphere, cube, cone, cylinder) — flat vs. solid
Exercise
Difficulty 3
~4 min
math.gK.f.gm.shapes_3d.ex_02
Roll Or Stack
Prompt
For each solid, predict (and then test): does it ROLL, does it STACK, or both? Record on the chart.
M-K-F-EX-30-A
Diagram
Physical / non-image
Worksheet table: 4 rows (sphere, cube, cone, cylinder) x 3 columns (ROLLS? STACKS? BOTH?). Each cell empty for child to check. Top header: 'Predict, then test.' Footer row asks 'Why? Because of __ faces.' Light blue table borders, 28-pt font.
How it's presented
mode
manipulative plus chart
solIDs
spherecubeconecylinder
Answer criteria
type
table match
expected
- cone
- rolls in a circle, no stack (without support)
- cube
- stacks, no roll
- sphere
- rolls all ways, no stack
- cylinder
- rolls one way, stacks on circle faces
Hints
- Try to push it. Does it roll?
- Try to stack two on top of each other. Does it balance?
Misconceptions to watch
- Says sphere stacks (does not — has no flat face).
- Cannot articulate why a cube only stacks (because of flat faces).
Used in lessons