Lesson plan

8. A bucket of seashells: make a ten (FP)

teaches Common Core State Standards CCSS.Math.Content.1.OA.A.1 http://corestandards.org/Math/Content/1/OA/A/1
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7

You have saved this lesson plan!

Here's where you can access your saved items.

Content placeholder

or to view additional materials

You'll gain access to interventions, extensions, task implementation guides, and more for this lesson plan.

Lesson objective: Add 2 single digit numbers with a sum less than 20 by using the make a ten strategy.

This lesson helps to build procedural skill with whole number addition. Number bonds and ten frames are used here because a ten frame reinforces a unit of ten and provides a visual of how many ones make a ten.  A number bond clearly demonstrates how numbers can be broken apart into two parts. This work develops students' understanding that make a ten is an efficient strategy for adding whole numbers.

Students engage in Mathematical Practice 7 - Look for and make use of structure as they decide how to compose and decompose numbers to make a ten.  By determining what how much more a number needs to make a ten and then decomposing the second number to make the ten, students are building a foundation for using the make a ten strategy for adding larger numbers. 

Key vocabulary:

  • add
  • broken apart
  • group
  • number bond
  • ten frame
  • sum
  • make-a-ten

Special materials needed:

  • counters, double tens frame