Put one next to one. The row with some left over has more.
Step 1: Let's Learn
Read it, or press Listen and follow the words.
Match them up
One flower goes with one flower. Another goes with another. The top row still has one left over. So the top row has more.
More and fewer
More is the bigger group. Fewer is the smaller one.
Step 2: Try It Yourself
Tap and try it out.
This row
That row
3 is less than 5.
Top row
Bottom row
How many in all
Step 3: In Real Life
Sharing grapes
You have grapes. Your friend has grapes. Line them up side by side. The longer line has more.
Step 4: Watch an Example
One step at a time.
Watch Bo Line Them Up
Bo has three cars and five blocks.
- Step 1
He puts one car next to one block.
CarsBlocksCarsBlocks
Watch Ana Line Them Up
Ana has 4 red balls and 3 blue balls. Ana starts. You finish.
- Step 1
She puts one red ball next to one blue ball.
Red ballsBlue ballsRed ballsBlue balls
Step 5: Your Turn
Practice makes it stick.
Cats and Dogs
Problem 1 of 12
Four cats and two dogs. How many more cats?
Fish Bowls
Problem 2 of 12
Mia has 3 fish. Leo has 5 fish. Who has fewer?
Which Has More
Put one next to one. Then answer.
Problem 3 of 12
Which is more, 4 or 2?
Problem 4 of 12
Which is more, 3 or 5?
Problem 5 of 12
Which is fewer, 1 or 3?
Find the Mistake
A friend looked at the rows. Can you spot the slip?
Problem 6 of 12
Sam looks at the rows. He says they are the same. What did Sam do?
Problem 7 of 12
Which row has more?
Problem 8 of 12
Ana looks for the row with fewer. She picks the 5 fish. What did Ana do?
Problem 9 of 12
Which is fewer, 2 or 5?
Which Way?
Pick the way that works.
Problem 10 of 12
3 red and 4 blue. Which way finds which has more?
Problem 11 of 12
5 red and 1 blue. Which way is quick?
Make More
Tap to add apples.
Problem 12 of 12
Make more than three apples.
- None yet. Add some!
How many in all
Step 6: Quick Check
Show what you know.
Question 1 of 1
Which is more, 5 or 3?
Ready for more?Optional. Past the lesson, for anyone who wants it.
Stretch 1 of 1
4 red balls. 2 blue balls. How many blue to add to make them the same?
What You Learned
- Match one to one to compare.
- The row that keeps going has more.
For the grown-up
Matching one to one tells you which group is bigger without counting either, which works for numbers far beyond what the child can yet count.
A spread-out row looks like more and is not. Spreading things out adds space, not objects. This is the classic conservation error and children hold it firmly, so showing it beats explaining it.
Line them up in pairs and the spreading cannot mislead. If they still say the longer row has more, push the rows together in front of them and ask again.