Addition Strategies 1st Grade Guided Math Unit Activities and Lessons within 20

Do you need engaging math lessons and activities to teach Addition Strategies in first grade? This 1st grade addition within 20 guided math unit includes lesson slides, hands-on activities, math centers, worksheets, addition strategy posters, and assessment. Strategies include making a model, number bonds, using a number line to add, counting on, doubles, doubles + 1, friends of ten, and more!

Teaching addition strategies in first grade is so important for developing fact fluency and helping students to be flexible problem solvers!

These units are designed to make planning as easy and low prep as possible for you while being engaging and fun for students! 

Included in the unit:

⭐️ Mini Lesson Slides:

These colorful and engaging teaching slides provide a comprehensive overview of addition strategies and concepts. They are designed to be easy to follow and include examples and practice problems to reinforce the concepts being taught. No planning or prep required, just click and teach! 

Powerpoint and Google Slides Versions Included

Each of the Lessons Includes:

✅ Learning Objective

✅ Vocabulary

✅ Teaching Slides 

✅ Practice Activities 

✅ Critical Thinking

There are 15 Mini Lessons included:

Lesson 1: Introduce Addition – Make a Model to Add

Lesson 2: Part Part Whole/ Number Bonds

Lesson 3: Decomposing Numbers into Number Partners

Lesson 4: Adding on a Number Line

Lesson 5: Counting On to Add

Lesson 6: Drawing Addition Pictures/ Solving Word Problems

Lesson 7: Add 0 and Add 1

Lesson 8: Commutative Property of Addition

Lesson 9: Friends of Ten

Lesson 10: Friends of Ten Part 2

Lesson 11: Doubles

Lesson 12: Doubles +1

Lesson 13: Ten + More Strategy

Lesson 14: Make 10 to Add

Lesson 15: Math Word Problems Part 2

⭐️ Hands-On Addition Activities for Whole Group, Small Group, and Centers

These activities were created for hands-on practice with addition to 20 concepts!

I included activities to use during:

• Small Group Time – students get guided practice at the teacher table during math rotations
• Whole Group – I included activities that are perfect for whole group review during or at the end of your unit
• Math Centers - I love re-using activities we have already done together at teacher table because students are able to complete them independently!

Activities Included:

• Build and Add Math Mat
• Part Part Whole – Number Bond Math Mat
• Roll, Roll, Add Math Mat
• Number Line Addition Math Mat
• Count on to Add Math Mat
• Domino Addition Commutative Property
• Make 10 Ten Frame Math Mat
• Make 10 Cubes
• Shake and Spill Make 10
• Double Up Math Mat
• Double Bubble Trouble
• Doubles +1 Math Mat
• 10 + More Math Mat
• Make a 10 to Add Math Mat
• Addition Flash Cards and Strategy Sort
• Addition Write and Wipe Review Cards
• My Addition Strategy Book
• Addition Word Problem Task Cards
• Add and Cover – Sums to 12
• Add and Cover– Sums to 20
• Addition Tool Box Math Craft
  

For each activity, I included teacher notes that give ideas for using the activity in your classroom!

Math Mats are my favorite for no-prep activities. These activities are perfect for centers or small group work. They are designed to be hands-on and interactive, allowing students to apply the concepts they have learned in a fun and engaging way.

To use: just slide them into dry erase pockets and add manipulatives for hands-on practice!

⭐️ Addition Strategy Posters and Mini Posters 

After introducing the addition strategies with your daily lesson slides, add these printable posters to an Addition Strategy Wall! Students can easily reference the strategies and review throughout the year.

These posters are perfect for classroom display and serve as a visual reminder of the key concepts covered in the unit. They include colorful graphics and clear explanations of concepts.

I also love using the included mini posters to make strategy rings for students to access during small group and math centers. 

And I give each of my students the individual Addition Strategy Sheet to keep in their math folders for easy reference!

⭐️ Daily Addition Word Problems

Perfect for a daily math warm up to develop problem solving skills and apply strategies.

• Teaching Slides
• Student Pages
• Task Cards

⭐️ Addition Worksheets (Differentiated Options!)

This unit includes 32 worksheets for independent practice of the skills taught during the mini lessons! Perfect for math centers, independent work, and morning work.

⭐️ Assessment

Assess your students before, during, and after your addition unit!

Includes:

Exit Slips:

• These are designed to be quick check-in used throughout your unit for formative assessment.
• At the end of your lesson, give an exit slip to each student to complete. Collect and use the data to guide the next days small group instruction.
• 15 exit slips included!

Brain Check

• This is designed to be a summative assessment at the end of the unit.
• I included 2 versions that could be used as a pre-test and post test in your classroom.
• Answer keys are also included!

Want Guided Math lessons to use all year long? Grab the Happy Math Bundle!

Here's what teachers are saying:

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