NY Next Generation Math NY-K.NBT.1
The Standard
Compose and decompose the numbers from 11 to 19 into ten ones and one, two, three, four, five, six, seven, eight, or nine ones.
New York State Next Generation Mathematics Learning Standards
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students build each teen number as one group of ten ones and some additional ones. They take teen numbers apart into 10 and a number from 1 through 9.
What Mastery Looks Like
- Given 17 counters, a student makes a group of 10 and leaves 7 ones. The student can draw the groups and write 17 = 10 + 7.
Common Misconceptions
- Students may read 14 as 1 and 4 without connecting the 1 to ten ones. They may count a bundled ten as one object and report five for one ten and four ones.
How to Assess It
- Give the student 16 counters and ask for a group of 10 with the leftovers shown separately. Then ask for a drawing and an equation that match.
Lesson moves
Ways to Teach It
Fill one ten-frame, place extra counters on a second frame, and name the teen number built.
Ask, "Why does 10 plus 4 make 14 rather than 104?"
Play a teen-number race where partners draw a card, bundle ten craft sticks, and add the correct number of loose sticks.
Pack ten crayons in one box and place extra crayons beside it to model a store's boxes and singles.
Free download
Printable NY-K.NBT.1 Worksheet
A ready-to-print activity worksheet aligned to NY-K.NBT.1, with an answer key for the teacher on its own page. No account needed.
PDF, US Letter, prints cleanly in black and white.
Download the worksheetKeep exploring
Related Standards
- NY-1.NBT.2.c
Understand the numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).
- NY-K.OA.3
Decompose numbers less than or equal to 10 into pairs in more than one way.
- NY-1.NBT.2.b
Understand the numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.
- NY-2.NBT.7.b
Understand that in adding or subtracting up to three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones, and sometimes it ...
Turn this exact standard into a lesson
Grade, subject, topic, and the complete standard are prefilled. Create one free, no account needed.
Also for this standard:Make a WorksheetMake a QuizMake a Sub Lesson