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From one cell to you

Algebra 1Linear vs exponentialabout 2 minCCSS HSF.LE.A.3CCSS HSF.LE.A.1.c

How many rounds of splitting make you? Guess, then seed your own pond.

Lesson Plan

Compare linear and exponential growth by modeling repeated addition against repeated doubling.

  1. Question: Ask what students spot and what they are curious about. Read “How many rounds of splitting?” 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 “When was the pond half full?” aloud. Have partners explain their guesses to each other.

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

  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.