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Understand teen numbers as ten ones and some more

Students will understand that numbers 11–19 are composed of one group of ten ones and some additional ones. They will use objects and drawings (like ten frames) to show this structure.

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Understand teen numbers as ten ones and some more

Kindergarten · Numbers 11–19 and Place Value Foundations · question 1 of 3

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12 rungs. A star at the top.

Lena has 10 red carrots and 1 yellow carrot. How many in the garden?

How it is taught

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A teen is one ten and some ones.

The left digit is the ten.

Read it: A teen number is 10 and some more

14 is 10 and 4 more: a full frame of 10, and 4 in the next frame.

  1. Fill the first frame: 10.
  2. Put the rest in the next frame: 4.
  3. 10 and 4 more is 14.

A full ten-frame always holds 10.

The ones in the next frame are the rest of the number.

14 is 1 ten and 4 ones, and we write the ten first.

A teen number is 10 and some more.

Writing 41 for 10 and 4 more.

The ten comes first: 1 ten and 4 ones is 14.

What is 10 + 9? — 19. A full 10 and 9 more is 19.

13 = 10 + 3

Let's see what makes the number thirteen.

Here are ten dots. Let's count them together.

One, two, three, four, five, six, seven, eight, nine, ten! Ten ones make one ten.

Now look! Here are three more dots.

What makes 13?ten onesthree more10one ten+3three ones=1313 IS10 + 31 ten and 3 ones
Kindergarten · Thirteen is one ten and three more

We had one group of ten.

And three more ones.

Ten plus three is thirteen.

Thirteen is one ten and three ones. You did it!

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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