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Why does Greenland look as big as Africa?

7th GradeScale drawingsabout 2 minCCSS 7.G.A.1

Slide Greenland and see the map stretch it.

Lesson Plan

Explore scale drawings, including how scaling lengths changes area.

  1. Question: Ask what students spot and what they are curious about. Read “How many Greenlands fit inside Africa?” aloud. Have each student guess and say why.

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

  3. Question: Read “How many times too big does its area look?” aloud. Have partners explain their guesses to each other.

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

  5. Real-world application: Ask: Where else have you seen this?

  6. 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.