Cogito
Grade 1 Math · Chapter 9 · Lesson 3
Naming Solid Shapes
Meet the shapes you can pick up and hold.
10 problems · about 12 minutes · 1.G.A.1
Figures — use these to answer the problems
Cube
Flat faces
6
Does it roll?
No
Cylinder
Flat faces
2
Does it roll?
Yes
Warm-Up Review
From earlier lessons. Loosen up before the new work.
4 problemsFrom “Naming Flat Shapes”
A shape has 6 straight sides. What is it?
- A hexagon.
- A square.
From “What Makes a Shape a Shape?”
How many corners does a triangle have?
AnswerFrom “When the Ones Make a Ten”
16 + 17 = ?
AnswerFrom “Adding Two-Digit Numbers”
21 + 14 = ?
Answer
Warm Up
Straightforward practice. Get the method working first.
3 problemsA can of soup is shaped like what?
- A cylinder.
- A cube.
How many flat faces does a sphere have?
AnswerHow many flat faces does a cube have?
Answer
Build It Up
The same ideas with more to keep track of.
1 problemHow many flat faces does a cylinder have?
Answer
Stretch Yourself
Mixed problems. Work out what kind of question it is before you start.
2 problemsWhich one rolls?
- A sphere.
- A cube.
In the Toy Box
A shape is round everywhere and rolls any way. What is it?
- A sphere.
- A cube.
- A cone.