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🔬 7th Grade · ScienceMS-LS3-2Unit 5: Heredity & natural selection

Punnett squares

Google Classroom

🎯 Objective: Students use Punnett squares to predict variation from sexual reproduction.

Lesson outline

  1. Coin-flip genetics.
  2. Practice.
  3. Discuss.
  4. Exit: one cross.

Lesson 2 of 4 in this unit. In the Lesson Planner this lesson takes 1–3 class periods depending on your timetable: day 1 introduce & model, then practice, small-group reteach and a quick check.

📐 Standard

MS-LS3-2

Next Generation Science Standards (NGSS), middle school — Life Science (discipline-specific model)

🏁 Unit goals

  • Model how sexual reproduction leads to variation
  • Explain natural selection with evidence

✅ Check for understanding

End with the exit ticket in the outline. Sort answers into got it / almost / not yet and start the next lesson with a 5-minute reteach for the “not yets”.

Practice & resources on Thinkabara

🪙 Coin flip🦫 Encyclopedia: Science🦫 Kids encyclopedia⚡ Capy Live class quiz

🗓️ Plan the whole year like this

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More lessons in “Heredity & natural selection”

  1. Genes and traits
  2. Punnett squares
  3. Fossil record
  4. Natural selection

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