Cogito
Kindergarten Math · Chapter 2 · Lesson 1
More, Fewer, the Same
Matching one to one.
10 problems · about 8 minutes · K.CC.C.6
What this lesson teaches
The child compares two groups by matching and says which has more.
- Match one to one to compare.
- Whichever has things left over has more.
- If they run out together, they are equal.
Warm-Up Review
From earlier lessons. Loosen up before the new work.
4 problemsReview — Writing Numbers: How many? ⭐⭐⭐⭐⭐⭐⭐
Answer 7
Why Seven.
Review — Sixteen to Twenty: Ten and eight more is?
Answer 18
Why Eighteen.
Review — Eleven to Fifteen: Ten and three more is?
Answer 13
Why Thirteen.
Review — Counting to Ten Again: How many? 🐟🐟🐟🐟🐟🐟
Answer 6
Why Six.
Warm Up
Straightforward practice. Get the method working first.
3 problemsWhich is more, 9 or 6?
Answer 9
Why Nine.
Which is more, 7 or 5?
Answer 7
Why The bigger group.
Which is fewer, 3 or 8?
Answer 3
Why The smaller group.
Build It Up
The same ideas with more to keep track of.
2 problems5 and 5. Are they the same?
Answer Yes, the same.
Why They run out together.
8 cats, 5 dogs. How many more cats?
Answer 3
Why Match them up.
Stretch Yourself
Mixed problems. Work out what kind of question it is before you start.
1 problemCups and Straws: Six cups and four straws. How many cups have no straw?
Answer 2
Why Two.