7.NS.A.3 lessons
Solve real-world and mathematical problems involving the four operations with rational numbers. (Addition and subtraction of integers only.)
The Common Core State Standards for Mathematics code 7.NS.A.3 asks students to: “Solve real-world and mathematical problems involving the four operations with rational numbers. (Addition and subtraction of integers only.)” These Fieldbook lessons teach it hands-on, with everyday materials, a printable teacher guide and a student sheet.
Below Zero: Integers in the Real World Grades 6–7 · partly supports this standard
- How much did the temperature change? 50–60 min
Teams play a temperature-swing dice game on a thermometer number line and model each move with two-colour counters, then work out real record swings, including a town where the temperature rose 27 degrees in two minutes. Students add and subtract integers, explain zero pairs, and discover why subtracting a negative number makes the answer bigger.
- Are we in the red? 50–60 min
Teams keep the books for a class lemonade stand, tracking every purchase, sale, fee and refund as a positive or negative integer. They find that a stand that took in $64 still ended $3 in the red, then plan how to break even. Students add and subtract integers in a real context, including subtracting a negative, and explain a balance with zero pairs.
More Common Core standards for Grade 7
All standards we teach · Curriculum alignment by state and province
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