Unit 1: Adding, Subtracting, and Working with Data

Students represent and solve story problems within 20 through the context of picture graphs and bar graphs that represent categorical data. Students build toward fluency with addition and subtraction.

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Unit

Review the unit’s main ideas.

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Concept

Start with the core idea.

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Practice

Build fluency with more questions.

Set 1

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Set 2

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Advanced

Try more challenging problems.

Set 1

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Set 2

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What this unit covers

A Add and Subtract within 20 · 6 lessons

Goals

• Build toward fluency with adding within 100.
• Build toward fluency with subtracting within 20.

Lessons

1. Add and Subtract within 10
2. Relate Addition and Subtraction within 10
3. Relate Addition and Subtraction within 20
4. Add and Subtract Your Way
5. Add within 50
6. Center Day 1 (Optional)

B Ways to Represent Data · 6 lessons

Goals

• Interpret picture graphs and bar graphs.
• Represent data using picture graphs and bar graphs.
• Solve one-step problems using addition and subtraction within 20.

Lessons

1. Collect and Represent Data
2. Interpret Picture Graphs
3. Interpret Bar Graphs
4. Represent Data Using Picture Graphs and Bar Graphs
5. Questions about Data
6. Center Day 2 (Optional)

C Diagrams to Compare · 6 lessons

Goals

• Make sense of and interpret tape diagrams.
• Represent and solve Compare problems with unknowns in all positions within 100.

Lessons

1. Use Bar Graphs to Compare
2. Use Diagrams to Compare
3. Diagrams with All Kinds of Compare Problems
4. Solve All Kinds of Compare Problems
5. Center Day 3 (Optional)
6. Class Surveys (Optional)