Lesson 5

Encontremos la diferencia

Lesson Purpose

The purpose of this lesson is for students to develop fluency with subtraction within 10, using the relationship between addition and subtraction.

Lesson Narrative

In the previous lesson, students discuss the relationship between addition and subtraction. In this lesson, students find differences within 10. They may take away, count on, or use addition facts to help them find the value of the difference between two numbers. The relationship between addition and subtraction is the focus of the syntheses throughout the lesson.

  • Engagement

Learning Goals

Teacher Facing

  • Use the relationship between addition and subtraction to find differences within 10.

Student Facing

  • Encontremos diferencias hasta 10.

Required Materials

Required Preparation

CCSS Standards

Lesson Timeline

Warm-up 10 min
Activity 1 15 min
Activity 2 10 min
Activity 3 10 min
Lesson Synthesis 10 min
Cool-down 5 min

Teacher Reflection Questions

Many students prefer addition to subtraction. How do the activities in this lesson help students see that addition and subtraction are related and that addition can be used to find the difference between two numbers?

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