This Common Core aligned Exploring Addition Math Unit is intended to be used with both 1st and 2nd Grade students, but can also be used for upper elementary students needing remediation or Kindergarten students to extend their addition skills.
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Many of the activities featured in this unit can be easily manipulated to fit into the context of your classroom environment and used in a variety of ways! Activities can easily be used with small groups, independent work, math rotation centers, or teacher led instruction.
Below are a list of the Common Core math standards that this unit plan is aligned with:
1ST GRADE COMMON CORE STANDARDS
Use addition & subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, (e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem).
Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20.
Understand the meaning of the equal sign, & determine if equations involving addition and subtraction are true or false.
Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
2ND GRADE COMMON CORE STANDARDS
Use addition & subtraction within 100 to solve one & two-step word problems involving situations of adding to, taking from, putting together, taking apart, & comparing, with unknowns in all positions.
Fluently add and subtract within 20 using mental strategies.
Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.
Add up to four two-digit numbers using strategies based on place value and properties of operations.
Included in this unit plan (PDF format)
- Worksheets/activities that can be completed independently or in small groups.
- Fold-able that can be glued into math journals or used as a stand-alone activity.
- Vocabulary posters to display in the classroom or paste in journals (B&W and color versions).
- Mid-Unit Quiz and End of Unit Assessment.
- Answer Keys to all activities and assessments.
- Links to useful videos that can accompany certain activities (however, the activities can certainly be executed without the videos).
Use With Any Curriculum
These worksheets have been specifically designed for use with any international curriculum. You can use these worksheets as-is, or edit them using Google Slides to make them more specific to your own student ability levels and curriculum standards.