# Lesson 1

Addition Fluency Within 10

### Lesson Purpose

The purpose of this lesson is for students to develop fluency with sums within 10.

### Lesson Narrative

The standards call for students to demonstrate fluency with addition and subtraction within 10 by the end of grade 1. The purpose of this lesson is for students to identify any sums they are not yet fluent with, and spend time working on activities that will help them build fluency. The phrase “from memory” is used in the lesson activities as a way to help students distinguish between sums that they can recall very quickly and those that take them more time to find. For the purposes of this section, it is not important for students to accurately distinguish between sums they recall from memory and those they find with fluency using a strategy. It is important that students identify the sums that take them longer to find and to develop strategies for finding the value of these sums with increased fluency.

If students need additional support with the concepts in this lesson, refer back to Unit 3, Section A in the curriculum materials.

• Action and Expression
• MLR8

### Learning Goals

Teacher Facing

• Develop fluency with sums within 10.

### Student Facing

• Let’s add within 10.

### Required Materials

Materials to Gather

### Required Preparation

Activity 2:

• Gather materials from previous centers:
• Check It Off, Stage 1
• Number Puzzles, Stage 1
• Capture Squares, Stage 1

Addressing

### Lesson Timeline

 Warm-up 10 min Activity 1 15 min Activity 2 25 min Lesson Synthesis 10 min Cool-down 0 min

### Teacher Reflection Questions

Which sums are students still working to learn? How might you work in practice with these sums at other times during the school day?

### Print Formatted Materials

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 Student Task Statements pdf docx Lesson Cover Page pdf docx Teacher Guide Log In Teacher Presentation Materials pdf docx

### Additional Resources

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