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Science lesson plan · 3rd grade (Year 4 in England) · 30 minutes

Why some animals live in groups

Ecosystems and food chains

CCSS NGSS.3-LS2-1England: KS2 Y4 Living things and their habitats

Objective and success criteria

Students will: Why some animals live in groups.

  • 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: Producers, consumers, predators and prey

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 · 4 min

  • Quick retrieval from earlier learning (Producers, consumers, predators and prey). Students answer on mini whiteboards.
  • Show answers together and note who needs support in the main task.
  1. oak leaves → caterpillar → blue tit → sparrowhawk What is the sparrowhawk in this food chain? (tertiary consumer / producer / secondary consumer / primary consumer) → tertiary consumerPrompt: Start at the plant and count the arrows.
  2. lettuce → slug → hedgehog → badger Which animal is the predator of the slug? (hedgehog / lettuce / badger / slug) → hedgehogPrompt: A predator hunts and eats other animals; its prey is the animal it eats.
  3. Food chains: which statement is true? (Producers eat consumers. / A food chain can start with a lion. / A consumer gets its energy by eating other living things. / Herbivores are predators.) → A consumer gets its energy by eating other living things.Prompt: Producers make food; consumers eat.

Hook · 3 min

  • Show a food web and ask what would happen if one animal disappeared.
  • Share the objective: Why some animals live in groups. Read the success criteria together.

I do: model it · 7 min

  • Work through the example out loud, saying why you do each step, not just what you do.
  • Example: How does living in a group help here: wolves hunting as a pack?
  • Step 1: So the answer is: they can catch animals much bigger than one wolf
  • Answer: they can catch animals much bigger than one wolf
  • Pause after each step and ask a student to say what comes next.

We do: guided practice · 6 min

  • Do these together. Students try each step on whiteboards before you reveal it.
  • Use the hints as prompts rather than giving the answer.
  1. How does living in a group help here: meerkats taking turns as lookouts? (they can catch animals much bigger than one wolf / one warns the others when a hawk is near / workers share jobs like collecting food and caring for young / adults protect the calves from lions) → one warns the others when a hawk is nearPrompt: Think about food, safety, warmth and sharing work.
  2. Why do zebras stay close together in a herd? (To keep the grass warm. / Because they cannot walk alone. / Many eyes spot danger, and the stripes confuse lions. / To make it easier for lions to catch them.) → Many eyes spot danger, and the stripes confuse lions.Prompt: Is it easier for a lion to sneak up on one zebra or on a herd?

You do: independent practice · 7 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 6 questions are on the student sheet below, with answers in the key.

Exit ticket · 3 min

  • Two questions on their own. Sort answers into got it / nearly / not yet to plan the next lesson.
  1. What is one downside of living in a big group? (Food must be shared, and illnesses spread more easily. / Groups are always too cold. / Nobody ever helps anyone. / Predators can never find groups.) → Food must be shared, and illnesses spread more easily.Prompt: Think of a crowded classroom with one packet of biscuits.
  2. True or false? Fish swim in shoals to make it easier for predators. (True / False) → FalsePrompt: Think of the benefits and the costs.

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: Producers, consumers, predators and prey.
  • 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-3.

Free lesson plan from eurekami.com/lesson-plan-builder

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Why some animals live in groups

Name

Date

Score/ 6

  1. Question 1

    True or false? Some animals hunt in groups to catch bigger prey.

    • A. True
    • B. False
  2. Question 2

    How does living in a group help here: fish swimming in a huge shoal (school)?

    • A. they share warmth in freezing winds
    • B. it is hard for a predator to pick out one fish
    • C. workers share jobs like collecting food and caring for young
    • D. one warns the others when a hawk is near
  3. Question 3

    Why do zebras stay close together in a herd?

    • A. To make it easier for lions to catch them.
    • B. Because they cannot walk alone.
    • C. Many eyes spot danger, and the stripes confuse lions.
    • D. To keep the grass warm.
  4. Question 4

    True or false? All animals live in groups.

    • A. True
    • B. False
  5. Question 5

    How does living in a group help here: meerkats taking turns as lookouts?

    • A. one warns the others when a hawk is near
    • B. adults protect the calves from lions
    • C. they share warmth in freezing winds
    • D. it is hard for a predator to pick out one fish
  6. Question 6

    How does living in a group help here: wolves hunting as a pack?

    • A. they share warmth in freezing winds
    • B. adults protect the calves from lions
    • C. they can catch animals much bigger than one wolf
    • D. one warns the others when a hawk is near

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Answer key: Why some animals live in groups

  1. 1. A. True

  2. 2. B. it is hard for a predator to pick out one fish

  3. 3. C. Many eyes spot danger, and the stripes confuse lions.

  4. 4. B. False

  5. 5. A. one warns the others when a hawk is near

  6. 6. C. they can catch animals much bigger than one wolf