Counting & Cardinality
Count to 20 out loud.
Student counts: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
I have 2 blocks. You give me 3 more. How many do I have now?
5 blocks
What number is 10 + 2?
12
Is a pencil long or short?
Long (or short, depending on pencil shown)
What shape has 4 sides and 4 corners?
a square or a rectangle
Start at 12 and count to 18.
Answer: 12, 13, 14, 15, 16, 17, 18
There are 5 birds. 2 fly away. How many birds are left?
3 birds
Show me 15 with 10 blocks and some more. How many "more" blocks do you need?
5 more blocks
Which is heavier: a book or a feather?
a book
Point to a circle in this room.
Student points to a circular object (clock, plate, etc.)
Count backwards from 10 to 1.
Answer: 10, 9, 8, 7, 6, 5, 4, 3, 2, 1
Show me 4 with your fingers. Now show me 1 more. How many altogether?
5 fingers
I have 10 ones and 4 ones. What number is that?
14
Sort these colored pencils by color. (Show pencils in different colors)
Student sorts buttons into color groups
How many sides does a triangle have?
3 sides
I have 6 apples. How many is that? (Show me 6 fingers)
Answer: 6
I need 10 crayons. I have 6. How many more do I need?
4 more crayons
Write or show the number 18. How many tens? How many ones?
1 ten and 8 ones
Show me a penny. Show me a dime. Which is worth more?
Dime
Is a ball flat or solid?
Count by 10s to 50
Answer: 10, 20, 30, 40, 50
Show me 5 with blocks. Break it into 2 groups. What are the groups?
Possible answers: 1 + 4, 2 + 3, 3 + 2, 4 + 1
Which number is bigger: 13 or 17? How do you know?
17 is bigger. It has more ones.
I have 8 red blocks and 5 blue blocks. Do I have more red or more blue?
More red blocks
I have 2 triangles. I put them together. What shape can I make?
A square (or diamond/rhombus)