Evolution and Inheritance — Year 6 Lesson Plan
National Curriculum: Science — Evolution and inheritance: Year 6
Overview
Pupils learn about inheritance, adaptation, and evolution. They explore how offspring inherit characteristics from parents and how variation within a species can give some individuals a survival advantage. They study Darwin's theory of natural selection and investigate how species have adapted to their environments over long periods of time.
Learning Objectives
- Recognise that offspring are not identical to their parents and explore reasons for variation.
- Explain how adaptations help living things survive in their environment.
- Describe Darwin's theory of natural selection in simple terms.
- Understand that evolution occurs over very long periods of time.
Key Vocabulary
Suggested Lesson Structure
Show photographs of a range of animals in different habitats (Arctic fox, camel, cactus). Ask: what features help each organism survive in its environment? Introduce the word adaptation.
Explain inheritance: offspring receive characteristics from both parents, but are not identical to either. Introduce variation — some individuals have traits that make them better suited to survive. Explain natural selection: better-adapted individuals survive and reproduce, passing on their traits. Over many generations, this leads to evolution. Introduce Darwin and the Galapagos finches.
Beak adaptation simulation: pupils use different tools (tweezers, pegs, spoons) to pick up different 'food types' (seeds, worms modelled by string). Discuss which beak type is most effective for each food and connect to natural selection.
Pupils write an explanation of how a chosen animal (e.g. polar bear, giraffe, archer fish) is adapted to its environment, and how natural selection might have led to this adaptation over time.
Ask: does evolution mean that individual animals change during their lifetime? Pupils clarify: evolution occurs across many generations, not within an individual organism.
Common Misconceptions
- Pupils sometimes think animals deliberately develop adaptations because they need them — natural selection operates on random variation, not intentional change.
- Thinking evolution is fast — stress the enormous timescales involved (millions of years).
Prior Knowledge
Pupils should already be able to:
- Knowledge of living things and their habitats.
- Understanding of the basic idea of inheritance (children resemble parents).
- Awareness of variation between individuals.
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