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Count to 20 by ones

Students extend their counting sequence from 10 to 20, focusing on the teen numbers and their irregular names (eleven, twelve, thirteen...).

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Count to 20 by ones

Kindergarten · Counting to 100 · question 1 of 3

0 of 12

12 rungs. A star at the top.

10, 11, , 13

How it is taught

0:00 of 2:15

Teen numbers come after ten.

Eleven and twelve have special names.

Read it: Count by ones: the next number

Count by ones: 6, 7, 8. The number after 7 is 8, which is 1 more.

  1. Say the number you are on: 7.
  2. Count 1 more.
  3. Say the next number: 8.

Counting by ones goes up by 1 each time.

8 comes right after 7, so 8 is 1 more than 7.

Each number you say is 1 more than the one before.

Counting by ones, each number is 1 more.

Skipping a number: 7, then 9.

Count by ones. After 7 comes 8, then 9.

What is 1 more than 3? — 4. 4 comes right after 3.

Counting from 1 to 20

Today we'll count all the way up to twenty. Ready? Let's go!

One, two, three, four, five.

Six, seven, eight, nine, ten! That's our first row done.

Now come the teen numbers. Their names sound a little tricky — listen closely.

Eleven, twelve.

Thirteen — that's like 'three' with 'teen' on the end.

Fourteen, fifteen.

Sixteen, seventeen.

Eighteen, nineteen.

Let's count to 20!One number at a timeCounting 1 → 2012345678910Here come the TEEN numbers!11, 12, 13… all the way to 19111213"thir" + "teen" = 1314151617181920WE COUNTED TO20all by ones!
Kindergarten · Counting all the way to twenty

And twenty! We made it!

We counted from one all the way to twenty. Awesome 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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