Wyoming Math 1.NBT.1c
The Standard
Extend the number sequences to 120. In this range: Write numerals.
2023 Wyoming Mathematics Content and Performance Standards · Extend the counting sequence.
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students write numerals for numbers they hear, up to 120. They also write missing numerals in a counting sequence.
What Mastery Looks Like
- A student can fill in 97, 98, __, __ with 99 and 100. When they hear “one hundred six,” they write 106.
Common Misconceptions
- Some students write 1006 for 106. Others get stuck at 99 or write 1010 after 109.
How to Assess It
- On an exit ticket, have students fill in 98, 99, __, __, 102 and 116, 117, __, __, 120. Then say “one hundred six” and ask them to write the numeral.
Lesson moves
Ways to Teach It
Give pairs a number path from 90 to 120 with blanks; have them place numbered tiles, then write the missing numerals.
Write 109, 110, and 111 on the board; ask, “What changes in the written number each time?”
Play number relay: say a number up to 120, and have students write it on mini whiteboards before showing their answers.
Show a book with at least 120 pages; pairs turn to page 98 and record the next five page numbers.
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Printable 1.NBT.1c Worksheet
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