Lesson: Adding by Counting On: Numbers up to 20 Mathematics • 1st Grade

Start Practising

In this lesson, we will learn how to add within 20 by counting on from one of the numbers.

Lesson Plan

Students will be able to

  • count forward from one addend in 1s to find the total,
  • use the counting on strategy to add two one-digit numbers within 20,
  • identify the largest number in an addition sentence and count on from there.

Lesson Playlist

  • Adding Ten to Numbers up to 20
    00:35
  • Counting On to Add within 20
    00:35
  • Using Number Strips to Solve Addition Problems by Counting On
    00:59

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