Addition & Subtraction to 20 | 2nd Digital Math Intervention Unit

The Math Spot
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This digital addition and subtraction to 20 unit has everything you need to teach your math intervention small groups how to understand and carry out strategies for adding and subtracting to 20 even when you are not together.  

As you work through this entirely digital 5 Day Focus math intervention unit, your students will gain an understanding of strategies using hands-on materials, drawings as well as counting strategies for addition and subtraction to 20.

Click HERE to save 20% on the full year intervention lesson bundle. This comprehensive bundle includes all of your intervention instruction, assessment and independent practice for the entire school year!

Need the flexibility to teach digitally or face-to-face? This unit can also be purchased as a DIGITAL & PRINTABLE resource so that you can seamlessly switch between in-person and online teaching.

This 5-day program has been designed to be delivered entirely through the use of Google Slides. You do not need to meet with your students over 5 consecutive days and the skill is not expected to be mastered within the 5 day period, however, your students will be well equipped to continue their study through independent practice.

Included you will find:

Overview and Organization

The 5 Day Focus resources are designed to be informative and easy to use. I have included an overview of the related standards, an outline organizing the breakdown of how the topic is taught, a table of contents and a page outlining any and all materials that will be needed. I want you to be able to spend your time and energy on looking at your students' results and reflecting on their learning- NOT on organizing materials and trying to figure out how to use this resource!


Pre and Post Assessment Materials that mirror one another will allow you to see where your students began and how far they have progressed. I have also included daily exit tickets and a tracking form so that you can easily monitor each of your students. All assessments have been created for use in Google Slides and include digital manipulatives as needed.

Direct Instruction

Instructional lesson activities to use with small groups or individual students. Each of these lessons is detailed and comes with an accompanying set of slides with virtual manipulatives to use and model as you teach. There is gradual release across the 5 days beginning with more concrete models and moving away towards representative and, finally, abstract models. This research-based progression will surely help your students to progress. 

Independent Centers

Each of the 5 lessons also includes an independent practice activity. The independent activities have been created in the style of math centers so that they can be used directly after the instructional lesson but so they can also be used and re-used as students practice their skills have also been designed for use with Google Slides and include virtual manipulatives as needed.

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to see state-specific standards (only available in the US).
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).


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