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How fast can a town warm up?

7th GradeNegative numbersabout 3 minCCSS 7.NS.A.1.cCCSS 7.NS.A.3

Count the steps on a thermometer as a warm wind takes a town from four below zero to 45 degrees.

Lesson Plan

Practice adding and subtracting integers with temperature changes that cross zero.

  1. Big idea: Pause. Ask a student to say the idea in their own words.

  2. Question: Ask what students spot and what they are curious about. Read “How much warmer was the town?” aloud. Have each student guess and say why.

  3. Question: Read “How much warmer was Loma?” aloud. Have partners explain their guesses to each other.

  4. Big idea: Pause. Have partners explain the idea to each other.

  5. Your turn: Have students try their own. Ask them to predict before they test.

How to run it

  1. Whole classPut the lesson on the board. At each choice the class votes, then you select the winner.
  2. SoloShare the link, QR code, or post to Google Classroom. Each student gets to take their own path.