← Unit 1 — Counting and Comparing Numbers
Mathematics · Grade 1

Counting Objects to 20

Learning objective: Count a group of objects up to 20, touching or pointing to each object exactly once, and say how many there are in total.

Counting Objects to 20

What does it mean to count?

When you count, you say numbers in order: 1, 2, 3, 4... You say ONE number for each object. You never skip an object, and you never count the same object twice.

Try it with the apples

Look at the picture above. There are 8 apples in a row. Each apple has its own number on it — 1, 2, 3, all the way to 8. When you say the last number, that tells you the total — the whole amount.

One number, one object

The most important rule of counting: touch (or point to) ONE object each time you say ONE number. If you touch an apple and don't say a number, or say two numbers for one apple, your count will be wrong.

Counting can start anywhere in a group

You can count objects in any order — left to right, right to left, top to bottom — and you will still get the same total, as long as you count each object exactly once. Try counting the apples starting from the right side instead of the left. You should still get 8!

Practice makes counting easy

The more you count real objects — buttons, toys, fingers, steps — the easier and faster counting becomes. Try counting things around you today, like the chairs at your table or the books on a shelf.

Counting 8 apples, one at a time
1 2 3 4 5 6 7 8 Total: 8 apples

Point to one apple for each number you say. Count 1, 2, 3... all the way to the last apple. The last number you say is the total.

Vocabulary
count
— To say numbers in order, one for each object, to find out how many there are.
total
— The whole amount you get after counting everything.
Self-check quiz

When you count objects, how many numbers do you say for each object?

If you count 8 apples and the last number you say is 8, what is the total?

Can you count a group of objects starting from a different spot and still get the same total?

Practice

Find a small group of objects at home (like spoons, toys, or crayons). Count them one at a time and write down the total.