NY Next Generation Math NY-1.NBT.2.a
The Standard
Understand 10 can be thought of as a bundle of ten ones, called a "ten".
New York State Next Generation Mathematics Learning Standards
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students compose ten individual ones into one group called a ten. They understand that the bundle and the ten separate objects represent the same quantity.
What Mastery Looks Like
- A student counts ten sticks, bundles them, and identifies the bundle as one ten. The student can unbundle it and show that one ten contains ten ones.
Common Misconceptions
- Students may call any bundle a ten without checking its contents. They may count one bundled ten as one object and lose track of the ten ones it represents.
How to Assess It
- Give the student 13 craft sticks. Ask the student to make one ten, show the leftover ones, and explain what is inside the bundle.
Lesson moves
Ways to Teach It
Count ten craft sticks, secure them with a band, and trade the ten separate sticks for one bundled ten.
Ask students how one bundle can stand for ten objects without changing the amount.
Play make-a-ten by drawing object cards and bundling whenever a collection reaches ten ones.
Bundle pencils or straws in groups of ten to prepare a classroom supply inventory.
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Printable NY-1.NBT.2.a Worksheet
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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-1.NBT.2
Understand that the two digits of a two-digit number represent amounts of tens and ones.
- 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.1.a
Understand 100 can be thought of as a bundle of ten tens, called a "hundred."
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