Count to 100 by ones

Students will count the full sequence from 1 to 100 by ones, navigating the decade transitions (e.g., 29 to 30, 39 to 40). This builds fluency with the complete counting sequence.

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Kindergarten · Counting to 100 · question 1 of 3

0 of 12

12 rungs. A star at the top.

8, , 10, 11

How it is taught

0:00 of 2:11

Counting by ones goes on and on.

A new hundred starts after 99.

Read it: Count by ones on the line

After 37 comes 38: 1 tick on. After 59 comes 60: the ones run out, and a new ten starts.

Find the number you are on: 37.
Move 1 tick on.
Say the next number: 38.

Each tick on the line is 1 more.

After a number that ends in 9, the ones start again at 0 and the tens go up: 59, then 60.

The same rule works all the way to 100: after 99 comes 100.

Counting by ones is 1 tick on. After a 9, a new ten starts.

Saying 50 after 59, as if the tens went back.

The tens go up: 59, then 60.

After 69 comes ___? — 70. 69 ends in 9, so a new ten starts: 70.

Counting 1 → 100

Today we're going to count all the way to one hundred. That's a really big number!

Here is our number line. It starts at zero and goes all the way up to one hundred.

We start at one and count: one, two, three, four, five, six, seven, eight, nine, ten.

Kindergarten · Counting all the way to one hundred

Then come the teens: eleven, twelve, thirteen, all the way to twenty.

Here's a tricky spot. After twenty-nine, we don't say twenty-ten — we say thirty!

We keep counting through forty, fifty, sixty, seventy, eighty, ninety.

And after ninety-nine comes the biggest one — one hundred!

We counted all the way to one hundred. Great counting!

What you see

While they climb, your page writes one true line to ask about tonight, and a short note each Sunday.

MayaGrade 3 · Mathematics

Did you know?

A chessboard has 64 squares — share them out between the 8 rows and each row holds exactly 8.

Today’s goal: 1 star — one skill mastered, every rung of its ladder climbed
Climbing now: Divide within 100

An example student.

MayaGrade 3 · Mathematics

Maya earned 2 stars this week — Interpret multiplication as equal groups, which took 6 answers over 3 days before its star landed 3 days ago and Multiply by 6, 7, 8 and 9. Next up: Divide within 100.

An example week.

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