Lesson: Doubles Plus One Mathematics • 1st Grade

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In this lesson, we will learn how to add two consecutive numbers with sums up to 20 by finding one more than a doubles fact.

Lesson Plan

Students will be able to

  • recognize situations in which doubles plus one is a reasonable strategy for solving addition problems,
  • use models to solve addition problems by using the doubles-plus-one strategy,
  • solve addition problems by using the doubles-plus-one strategy without using models.

Lesson Playlist

  • Solving Addition Problems Which Are One More Than a Known Sum
    00:36

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