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Day 1 · What does a cell diagram prove?Year 11 Biology · T1 W1–2 · Day 1 lesson

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Year 11 / Biology / Term 1 / Weeks 01 02

Part of the full two-week lesson sequence. Check the pack guide and taught point before teaching.

Open for this lesson: Pack guide · Daily routes · Worked swaps · Fresh learner checks · Aids and text routes.

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Teacher copy: This page may include teaching prompts or answer keys. Answer keys in this public library can be viewed by anyone. Give learners a clean prompt, use checks as formative evidence, and change a case locally when prior access matters.

Learner prompts

Target: separate a labelled feature from an inference and a missing label from an absent structure. Prepare: Cards A/F and model boundary mat.

  1. Launch · 2 min. Show Card D's unfinished sketch with only membrane and ribosomes. Ask what is positively shown; defer classification.
  2. Model · 4 min. State the three layers: labelled membrane is evidence about the drawing; probably a cell is an interpretation; no nucleus exists is unsupported because the sketch is incomplete.
  3. Guided reading · 5 min. Compare an incomplete sketch with a complete inventory label. Underline what “complete only for this comparison” authorises and what it does not authorise about a real organism.
  4. Practice route · 7 min. Learners choose Day 1 route and write/direct/dictate a three-part claim for the unfinished sketch: one stated feature, one possible inference, one unavailable conclusion.
  5. Audit · 4 min. Partner replaces any “absent” based solely on blank drawing with “not shown”; teacher logs whether a prompt was given.
  6. Exit · 3 min. “Can we call the sketch prokaryotic yet?” Key: no; membrane/ribosomes alone fit both major patterns.

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