Lesson plan

Friends of Ten

The number ten has lots of friends, and they often come in pairs! Your students will sing a song, enjoy a video, play a game, and work on matching number pairs that make ten!
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Students will be able to use objects to decompose the number ten.

(10 minutes)
  • Gather your students where they can see the interactive whiteboard.
  • Load and watch the Number Pairs song.
  • Invite your students to sing along as you play the song again.
  • Ask your students to name some of the pairs in the song.
  • Ask your students what sum all of the pairs added up to.
  • Tell your students they will be playing a game to find the pairs that make ten.
  • Tell your students that the pairs are the "friends of ten.”
(10 minutes)
  • Write 5 + 5 = 10 on the board.
  • Then, write 10 = 5 + 5.
  • Ask your students what they notice about the two math sentences.
  • Explain that when the ten is written first, it is called decomposing. or breaking a big number into smaller numbers.
  • Write 10 = 4 + ____ on the board.
  • Ask your students what number is missing.
  • Ask your students to describe some ways to find the missing number.
  • Tell your students that they will be using pennies to find the missing number.
  • Load Decomposing Ten with Pennies on the interactive whiteboard.
  • Pause the video between transitions to explain, and have your students predict what will come next.
(15 minutes)
  • Gather your students in a circle.
  • Ask one student to help you demonstrate how to play the Friends of Ten game.
  • Tell your students how to know if a coin lands on heads or tails.
  • Pour ten coins from a small paper cup.
  • Count the heads, and write the number.
  • Count the tails, and write the number.
  • Direct the next player to do the same.
  • If a player pours a number pair that has already been used, explain that he will miss a turn.
  • Continue in this way until all of the spaces are taken.
  • Count who wrote the most number pairs.
  • Ask your students if they have questions about the game.
  • Put your students into pairs.
  • Have the pairs of students take their pennies, markers, and game sheets to another spot in the room to play.
  • Observe your students as they play.
  • Offer support where needed.
(5 minutes)
  • Hand out the Pairs that Make 10 worksheet, and dismiss your students to work in their table spots.
  • Observe and support your students as they work.
  • Enrichment: Give students 11 pennies to find pairs of numbers that make 11.
  • Support: Display pairs that make 10 where your students can see and check their work.
(5 minutes)
  • Make sure your students can draw a line from the left side to the corresponding number.
  • Walk around the room and check to see that your students are writing the correct numbers.
(5 minutes)
  • Replay the song from the introduction.
  • Encourage your students to sing along.
  • Ask your students to name some number pairs that make ten.
  • Ask your students to describe what decomposing means.

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