Kindergarten · Math · Unit 8 of 13
See It Fast
How many? Look and know
What your child practices
Subitizing means knowing how many are in a small group without counting. Practice with dice, dominoes and fingers: show a number and ask how many.
New York State Learning Standards learning standard: NY-K.CC.4; NY-K.CC.5a · connecting numbers to quantities and answering how-many questions about small groups
How we explain it
Children can open this short lesson before they practice.
- Look at the group. Do not count one by one.
- Small groups are easy to see: 1, 2, 3.
- Split a group in two parts, then put them together.
Example: You see 2 dots and 1 dot. How many in all? Two and one together. That makes 3. Answer: 3
See It Fast in New York
In the New York State Learning Standards, this is unit 8 of 13 in Kindergarten Math, after Numbers to 20 and before Build with Blocks.
Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
How many? Try not to count one by one.
🟡🟡- 3
- 6
- 2
2
Hint: Small groups are easy to see all at once. Look for 2s and 3s.
Question 2
How many? Try not to count one by one.
🔵🔵🔵- 5
- 6
- 3
3
Hint: Small groups are easy to see all at once. Look for 2s and 3s.
Question 3
1 and 2 together. How many?
⭐ ⭐⭐
- 2
- 3
- 4
3
Hint: Put the two small groups together and say how many in all.
Question 4
Which group has 5? Look fast.
- 🟡🟡🟡🟡🟡
- 🟡
- 🟡🟡🟡
🟡🟡🟡🟡🟡
Hint: Look at the whole group. You can see 2 and 3 without counting.
Question 5
Which group has 4? Look fast.
- 🟡🟡🟡🟡
- 🟡
- 🟡🟡
🟡🟡🟡🟡
Hint: Look at the whole group. You can see 2 and 3 without counting.
Question 6
Which number matches 🔵🔵🔵?
- 3
- 2
- 5
3
Hint: Look at the group, then pick the number that says how many.