⭐️This 2nd grade math unit is perfect for teaching your students to explain why addition and subtraction strategies work! 2nd grade students will understand the reasoning behind addition and subtraction, and will explain and present their knowledge through various activities. This unit is unique in that it can be taught explicitly as is, or can be used as a supplemental expansion to other addition and subtraction units. A detailed guide on how to use this resource effectively and strategically is included in the resource to provide a clear learning path. With this resource, students will master how to explain why addition and subtraction strategies work through targeted scaffolded worksheets, 2 detailed anchor charts, a group poster activity to "teach" an addition or subtraction strategy, an "explain the mistake" higher-order thinking activity, and a comprehensive unit quiz! Everything you need to understand, teach, and engage students is included in this complete unit long set.

⭐This resource includes both printable PDF and Google Slides versions for easy distance learning. Aligned to 2.NBT.B.9, these worksheets, activities, and assessments help students learn why addition and subtraction strategies work.

⭐️If you do not use Common Core, this packet is still perfect for teaching 2nd grade addition and subtraction skills.

What's Included?

1. How to use this resource guide
2. Anchor Charts - Explain Addition & Explain Subtraction
3. 2 Digit + 2 Digit- No Regrouping
4. 2 Digit + 2 Digit- Regrouping
5. 2 Digit + 2 Digit- Regrouping to hundreds
6. 3 Digit + 2 Digit- Regrouping
7. 3 Digit + 3 Digit- Regrouping
8. 2 Digit - 2 Digit- No Regrouping
9. 2-Digit – 2 Digit- Regrouping
10. 3 Digit – 2 Digit- Regrouping
11. 3 Digit - 3 Digit- Regrouping
12. Teach a New Student Poster Activity
13. Explain the Mistake
14. Quiz

Copyright & Terms of Use

For copyright information and a summary of how this resource can and cannot be used, please review the Terms of Use Page.

***************************************************************************

Related Products:

Adding and Subtracting (With Regrouping) to 1,000- 2.NBT.B.7, 2.NBT.B.6

Odd and Even Numbers- 2nd grade 2.OA.C.3 Google Slides Distance Learning Pack

***************************************************************************

Customer Tips:

How to get TPT credit to use on future purchases:

• Please go to your My Purchases page (you may need to login). Beside each purchase, you'll see a Provide Feedback button. Simply click it and you will be taken to a page where you can give a quick rating and leave a short comment for the product. Each time you give feedback, TPT gives you feedback credits that you use to lower the cost of your future purchases. I value your feedback greatly as it helps me determine which products are most valuable for your classroom so I can create more for you. ☺

Be the first to know about my new discounts, freebies, and product launches:

• Look for the green star next to my store logo and click it to become a follower. Voila! You will now receive email updates about this store. ☺

• Follow me on Facebook for updates on new products and sales

• Follow me on Instagram

• Join my email list by visiting my website and receive a free resource!

*****************************************************************************