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Decomposing Teen Numbers: Teen Number Games

1.nbt.b.2.a 1.nbt.b.2.b 1.oa.a.1 1.oa.c.6 1st grade math intervention activities decomposing teen numbers decomposition of teen numbers teen number matching game remove_red_eyepreview

Decomposing Teen Numbers

3-5 Decomposition of Teen Numbers (1.OA.A.1, 1.OA.C.6, 1.NBT.B.2.A, & 1.NBT.B.2.B) 

Enrich your math block with these fun activities your students will love! Decomposing teen numbers can be tricky for many students. Once students have mastered identifying teen numbers, they must also master understanding the composition of teen numbers. To do so, they must be able to explain the composition of a teen number as one ten, and a certain number of ones. For instance, the number fourteen is made up of one ten, and four ones. This understanding is crucial for the introduction of mathematical concepts in later grades.

 

We have put together a series of engaging math activities for students to practice decomposing teen numbers. Also be sure to grab our FREE Teen Number Posters to display as a reference in your classroom for easy student access.

 

Activity #1: Teen Number Matching Game

In this traditional-style matching game, students can play with a partner or small group to match the teen numbers in standard form to their corresponding ten frames. To play, students will need our FREE Teen Number Matching Game Cards. Consider printing them on cardstock and laminating them for easy reuse in your classroom!

 

Directions:

  • Print, cut, and laminate the FREE Teen Number Matching Game Cards. (Think about how you will use the game in your classroom, and how many sets of cards you will need).
  • Distribute cards to students, or place them in an area of the classroom where students can easily access them when it is time to play.
  • With a partner or small group, students will arrange the cards face-down.
  • Each student will take a turn. On their turn, they will pick up two cards, and try to find matching pairs of numbers and their corresponding tens frames.
  • If students find a match, they get to keep those cards and take another turn until they do not find a match.
  • Students take turns searching for matches. When all matches have been paired, the students with the most cards wins!

 

Activity #2: Build a Number

In this activity, students will practice building teen numbers to demonstrate their understanding of teen numbers as numbers composed of a ten and ones. This can be used during a whole group lesson, or also as part of a math center. Download our FREE Build a Number Template to get started!

 

  • Print a FREE Build a Number Template for students. (The number of templates you will need depends on how you plan on using the activity in your classroom).
  • Students will build a teen number by placing manipulatives in each of the boxes to form one ten, and the specified number of ones. Examples of manipulatives include: counters, mini erasers, candy pieces, small coins, etc. These templates could also be placed in page protector sleeves for students to write on with a dry erase marker.
  • Students can be directed as to which numbers to build, or they can have free choice. If using as part of a center, the number cards from our FREE Teen Number Matching Game Cards would be great for students to pull from a deck to determine which teen number to build.
  • This activity is also a great form of assessment when conducted individually with students to assess their knowledge of composing teen numbers.

 

Activity #3 Roll & Decompose

In this game, two players will face off by decomposing teen numbers. Each time a player lands on a space, they will need to decompose the number listed on the space. Grab our FREE Roll & Decompose Game to try in your classroom!

 

  • Print a copy of the game for your students. To play the game, students will need a game piece to keep track of their location on the game board. It is recommended to laminate or place the game in a page protector sheet so students can easily write on the board and erase their writing quickly.
  • Students can play with a partner or in a small group. All players will begin on the “Start” space.
  • When it is a student’s turn, they will roll a die to determine the number of spaces they will move. When they land on a space, they will decompose the number on the space using the blank number bond in the center of the gameboard.
  • Students will contain taking turns and decomposing different teen numbers as they make their way around the game board. The first student who makes their way all around the board wins!

 

Next time you are teaching decomposition of teen numbers in your classroom, give these engaging FREE resources a try!

 

This Lesson if from our 1st Grade Math Curriculum

Unit 3 – Intro to Place Value through Sums and Differences within 20

 

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