Cogito
Pre-K Math · Chapter 1 · Lesson 4
How Many Altogether
The last number you say.
10 problems · about 7 minutes · PK.CC.2
What this lesson teaches
The child understands that the last number counted tells how many there are.
- The last number you say is how many.
- Counting the other way gives the same answer.
Warm-Up Review
From earlier lessons. Loosen up before the new work.
5 problemsReview — See It Without Counting: How many? ●●
Answer 2
Why Two.
Review — Four and Five: How many? 🐟🐟🐟🐟
Answer 4
Why Four.
Review — One, Two, Three: How many? 🐤🐤🐤
Answer 3
Why Three.
Review — See It Without Counting: How many? ●●●
Answer 3
Why Just look.
Review — Four and Five: How many? ⭐⭐⭐⭐
Answer 4
Why One, two, three, four.
Warm Up
Straightforward practice. Get the method working first.
2 problemsYou counted to four. How many are there?
Answer 4
Why Four.
You counted to five. How many?
Answer 5
Why The last number.
Build It Up
The same ideas with more to keep track of.
1 problemYou counted to two. How many?
Answer 2
Why The last number.
Stretch Yourself
Mixed problems. Work out what kind of question it is before you start.
2 problemsCount these balls. How many? ⚽⚽⚽
Answer 3
Why One, two, three.
The Toy Box: You count three toys. How many toys are there?
Answer 3
Why Three.