Cogito
Kindergarten Math · Chapter 8 · Lesson 2
Solid Shapes
Shapes you can hold.
10 problems · about 9 minutes · K.G.A.3, K.G.B.4
What this lesson teaches
The child names three-dimensional shapes and tells them from flat ones.
- Solid shapes can be held; flat shapes cannot.
- Round ones roll, flat-faced ones stack.
- A cube has six flat faces.
Warm-Up Review
From earlier lessons. Loosen up before the new work.
4 problemsReview — Naming Flat Shapes: How many corners does a rectangle have?
Answer 4
Why Four.
Review — Ten More on the Chart: Ten more than 32?
Answer 42
Why Forty-two.
Review — Counting by Tens: Five bundles of ten. How many?
Answer 50
Why Fifty.
Review — Counting by Ones to a Hundred: What comes after 49?
Answer 50
Why Fifty.
Warm Up
Straightforward practice. Get the method working first.
3 problemsHow many flat faces does a cube have?
Answer 6
Why Six.
How many flat faces does a cube have?
Answer 6
Why Like a dice.
Does a box stack?
Answer Yes.
Why Flat faces stack.
Build It Up
The same ideas with more to keep track of.
2 problemsIs a square flat or solid?
Answer Flat.
Why You cannot pick up a drawing.
Does a can roll?
Answer Yes, on its side.
Why A cylinder rolls one way.
Stretch Yourself
Mixed problems. Work out what kind of question it is before you start.
1 problemThe Ball: Does a ball roll or stack?
Answer It rolls.
Why It rolls.