These Adding 3 Numbers within 20 Missing Addends Balancing Equations Task Cards help reinforce the concept of equality while deepening students' understanding of addition and subtraction. Students use subtraction to find the missing addend within 20 on the other side of the balance, after adding the first two given numbers. This reinforces the concepts of "equal" and addition and subtraction while building fluency with facts within 20.

These Balance the Equation task cards are the perfect rigorous activity for your high flyers and fast finishers! Have each task card set accessible for students to work to challenge themselves to apply the operations in new ways.

Students build their algebraic thinking with equivalence by working through balance the equation activities. By integrating algebraic concepts in elementary classrooms, students develop math reasoning and computation skills while applying number sense, logic, and algebraic thinking.

WHAT'S INCLUDED:

• 2 sets of 28 task cards
• Recording sheet
• answer key

Balancing Equations helps students understand the concept of equality – working to balance both sides of the equation. With these task cards, students should start by writing the equation represented on the balance then solving. These are also great for working with the concept of a variable. The included shape represents the unknown number and can easily be connected with the variable.

I intentionally left these task cards and the recording sheet somewhat open ended. This allows you to tailor your directions to match your students’ readiness levels. You can have students just identify the missing number write an equation, and/or use a variable.

If you have not worked with balances previously, students will likely need some instruction for beginning. Once it’s introduced, these are a great extension for fast finishers, and even high ability students depending on the grade level.

These task cards are great for:

• whole class instruction
• small group instruction- both guided or independent
• math stations or math centers
• fast finisher extensions
• high ability extensions
• enrichment
• reinforcement

These task cards are part of my Accessing Algebra line. Accessing Algebra is designed to focus on applying algebraic thinking with our existing standards, giving students the tools they'll need for success later. By looking at the standards in a new way, students build a deeper understanding of the standard while also building their critical and algebraic thinking.

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Copyright © Tessa Maguire.

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