Kindergarten Fall Math — Counting to 100, Subitizing, Cardinality, Shapes, and Pattern
Math · GM K math.gK.f.gm.shapes_3d

Identify, name, and describe 3D shapes (sphere, cube, cone, cylinder) — flat vs. solid

Name 3D solids in real-world objects. Distinguish 2D (flat) from 3D (solid) shapes — sphere is solid, circle is flat. Describe solids by counting flat faces, curved surfaces, edges, and vertices at a developmentally appropriate level.

Mastery threshold
90%
Min instances
12
Typical minutes
25
Spaced intervals (days)
1, 3, 7, 14, 30, 60
Prereqs
Successors
Common misconceptions
  • Calls a cube a 'square' (no distinction between 2D and 3D shape names).
  • Calls a cylinder a 'circle' or 'tube' without using the solid name.
  • Counts edges as faces or vice versa.
  • Cannot distinguish between a cone (one circular face, one vertex/apex) and a cylinder (two circular faces, no vertices).

Exercise pool (3)

Diff Stem Type
2 Sort these 8 objects into two groups: FLAT (2D) and SOLID (3D). Tell me how you decided. solid or flat sort
2 Match each solid name to a real-world object photo. match solid to real world
3 For each solid, predict (and then test): does it ROLL, does it STACK, or both? Record on the chart. roll or stack