Science lesson plan · 8th grade (Year 9 in England) · 45 minutes
Structural, behavioural and functional adaptations
Ecosystems and food chains
CCSS NGSS.MS-LS4-4CCSS NGSS.HS-LS4-4England: GCSE Combined Science: Ecology (adaptations)
Objective and success criteria
Students will: Structural, behavioural and functional adaptations.
- I can answer questions on today's skill on my own, without help.
- I can explain each step and say why it works.
- I can check my answer and spot a mistake.
Before and after
Needs first: Adaptations to habitats
Leads to: the next skill in this area.
Materials: Food web cards, Arrows to build chains, Mini whiteboards, A diagram or short video clip of the idea, Printed student sheet (below).
Warm-up · 5 min
- Quick retrieval from earlier learning (Adaptations to habitats). Students answer on mini whiteboards.
- Show answers together and note who needs support in the main task.
- Why do ducks have webbed feet? (to keep their feet warm / to dig burrows / to push through water when swimming / to grip branches) → to push through water when swimmingPrompt: Webbed feet work like flippers.
- Adaptations: which statement is true? (A giraffe's neck grew longer because its parents stretched. / Animals choose to grow adaptations when they need them. / An adaptation is a feature that helps a living thing survive in its habitat. / Every animal can live in every habitat.) → An adaptation is a feature that helps a living thing survive in its habitat.Prompt: Adaptations take many generations to appear.
- Adaptations: which statement is NOT true? (Fish have gills to take oxygen from water. / A giraffe's neck grew longer because its parents stretched. / Cactus spines help reduce water loss and protect it from animals. / Some animals use camouflage to hide from predators.) → A giraffe's neck grew longer because its parents stretched.Prompt: Can an animal decide to change its body for its babies?
Hook · 5 min
- Show a food web and ask what would happen if one animal disappeared.
- Share the objective: Structural, behavioural and functional adaptations. Read the success criteria together.
I do: model it · 10 min
- Work through the example out loud, saying why you do each step, not just what you do.
- Example: What type of adaptation is this: a camel producing very little urine?
- Step 1: Functional adaptations are processes inside the body.
- Step 2: So the answer is: functional (body processes)
- Answer: functional (body processes)
- Pause after each step and ask a student to say what comes next.
We do: guided practice · 10 min
- Do these together. Students try each step on whiteboards before you reveal it.
- Use the hints as prompts rather than giving the answer.
- What type of adaptation is this: a fennec fox's very large ears? (structural (body shape or parts) / behavioural (what it does) / functional (body processes)) → structural (body shape or parts)Prompt: Is it a body part, an action, or a process inside the body?
- Why do many desert plants open their stomata only at night? (To reduce water loss when it is cooler / To catch insects / Because they photosynthesise at night / To keep warm) → To reduce water loss when it is coolerPrompt: Water evaporates faster in the hot day.
You do: independent practice · 10 min
- Students work on the student sheet. Circulate and check the first two answers of every student early.
- Students who finish: write a question of their own for a partner, with the answer.
The 8 questions are on the student sheet below, with answers in the key.
Exit ticket · 5 min
- Two questions on their own. Sort answers into got it / nearly / not yet to plan the next lesson.
- Organisms living in extreme places, such as deep-sea vents, are called… (decomposers / extremophiles / invasive species / carnivores) → extremophilesPrompt: The name means "loving extremes".
- What type of adaptation is this: a hedgehog hibernating? (structural (body shape or parts) / behavioural (what it does) / functional (body processes)) → behavioural (what it does)Prompt: Is it a body part, an action, or a process inside the body?
Watch out for
- Everyday meanings of words getting in the way of the science meaning: define key words explicitly.
- Remembering facts without the reason: ask "why?" and "what is the evidence?"
Support and stretch
Support
- Review first: Adaptations to habitats.
- Use concrete materials: food web cards.
- Give the first step of each question, or a partly worked example to finish.
- Pair with a confident partner for the guided practice.
Stretch
- Explain a common mistake in writing and how to fix it.
- Write a word problem that uses today's skill, then solve a partner's.
Homework and more practice
Free online practice with hints and printable worksheets for this skill: eurekami.com/science/grade-8.
Free lesson plan from eurekami.com/lesson-plan-builder