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🧮 Kindergarten · MathK.NBT.A.1Unit 8: Teen numbers: ten ones and some more

Teen number equations

Google Classroom

🎯 Objective: Students write teen numbers as 10 plus ones, like 10 + 5 = 15.

Lesson outline

  1. Connect the ten-frame picture to 10 + 5 = 15.
  2. Show hidden ones with place value cards.
  3. Match equations to ten-frame cards.
  4. Exit: 10 + ___ = 18.

Lesson 2 of 4 in this unit. In the Lesson Planner this lesson takes 1–3 class periods depending on your timetable: day 1 introduce & model, then practice, small-group reteach and a quick check.

📐 Standard

K.NBT.A.1

Common Core State Standards for Mathematics, Kindergarten — typical US scope & sequence

🏁 Unit goals

  • Show 11–19 as ten ones and some further ones
  • Record teen numbers with drawings and equations (10 + 4 = 14)

✅ Check for understanding

End with the exit ticket in the outline. Sort answers into got it / almost / not yet and start the next lesson with a 5-minute reteach for the “not yets”.

Practice & resources on Thinkabara

🎯 Practice: Number & Operations in Base Ten📚 All Kindergarten skills🎮 Learning games⚡ Capy Live class quiz

🗓️ Plan the whole year like this

Add Kindergarten Math to your free Lesson Planner: enter your timetable once and every period shows the next lesson, skipping weekends and school breaks.

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More lessons in “Teen numbers: ten ones and some more”

  1. Ten and some more
  2. Teen number equations
  3. Teen numbers with bundles
  4. Teen number games

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