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Science lesson plan · 3rd grade (Year 4 in England) · 45 minutes

Life cycle of a flowering plant

Plants

CCSS NGSS.3-LS1-1England: KS2 Y3 Plants

Objective and success criteria

Students will: Life cycle of a flowering plant.

  • 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: Seeds, bulbs and germination

Leads to: the next skill in this area.

Materials: Real plants or seeds, Hand lenses, Mini whiteboards, A diagram or short video clip of the idea, Printed student sheet (below).

Warm-up · 5 min

  • Quick retrieval from earlier learning (Seeds, bulbs and germination). Students answer on mini whiteboards.
  • Show answers together and note who needs support in the main task.
  1. Is this a seed or a bulb: daffodil? (seed / bulb) → bulbPrompt: Seeds are usually small and hard. Bulbs are rounder, with papery layers.
  2. What do most seeds need to start growing (germinate)? (water and warmth / sweets / salt / darkness and cold) → water and warmthPrompt: Seeds wake up when it is damp and not too cold.
  3. Which of these is a seed? (sunflower seed / tulip / hyacinth / garlic) → sunflower seedPrompt: Seeds come from inside fruits and pods. Bulbs are round and have papery layers.

Hook · 5 min

  • Bring in a plant that has been kept in the dark next to one in the light, and ask what happened.
  • Share the objective: Life cycle of a flowering plant. 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: In the life cycle of a bean plant, what comes straight after "plant with flowers"?
  • Step 1: bean seed → root and shoot appear → seedling → plant with flowers → pods with new beans
  • Step 2: So the answer is: pods with new beans
  • Answer: pods with new beans
  • 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.
  1. In the life cycle of a sunflower, what comes straight after "seed"? (flowering plant / new seeds / young plant / seedling) → seedlingPrompt: Picture the plant growing bigger, then making seeds.
  2. Why is it useful for seeds to be spread far from the parent plant? (So the parent plant can eat them / Because seeds dislike their parents / So they stay in the shade / So new plants do not compete with the parent for light, water and space) → So new plants do not compete with the parent for light, water and spacePrompt: What would happen if all the seeds grew right underneath the parent?

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.
  1. Why do flowering plants need flowers? (to take in water / to make the soil / to make seeds / to hold the plant up) → to make seedsPrompt: What new things appear after the flowers die?
  2. In the life cycle of a flowering plant, what comes straight after "seedling"? (flowering / pollination / adult plant / seed dispersal) → adult plantPrompt: The cycle starts and ends with seeds.

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: Seeds, bulbs and germination.
  • Use concrete materials: real plants or seeds.
  • 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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Life cycle of a flowering plant

Name

Date

Score/ 8

  1. Question 1

    In the life cycle of a sunflower, what comes straight after "flowering plant"?

    • A. new seeds
    • B. seed
    • C. seedling
    • D. young plant
  2. Question 2

    After pollination, which part of the flower becomes the fruit?

    • A. the roots
    • B. the stem
    • C. the petals
    • D. the ovary
  3. Question 3

    In the life cycle of a flowering plant, what comes straight after "adult plant"?

    • A. germination
    • B. flowering
    • C. seedling
    • D. pollination
  4. Question 4

    Why is it useful for seeds to be spread far from the parent plant?

    • A. So the parent plant can eat them
    • B. So they stay in the shade
    • C. So new plants do not compete with the parent for light, water and space
    • D. Because seeds dislike their parents
  5. Question 5

    In the life cycle of a bean plant, what comes straight after "plant with flowers"?

    • A. root and shoot appear
    • B. bean seed
    • C. pods with new beans
    • D. seedling
  6. Question 6

    What is the young plant that grows from a seed called?

    • A. a seedling
    • B. a petal
    • C. a fruit
    • D. a bulb
  7. Question 7

    In the life cycle of an apple tree, what comes straight after "tree in blossom"?

    • A. pollination
    • B. young tree
    • C. apple pip
    • D. apples with pips
  8. Question 8

    In the life cycle of a flowering plant, what comes straight after "seed"?

    • A. pollination
    • B. seed dispersal
    • C. germination
    • D. flowering

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Answer key: Life cycle of a flowering plant

  1. 1. A. new seeds

  2. 2. D. the ovary

  3. 3. B. flowering

  4. 4. C. So new plants do not compete with the parent for light, water and space

  5. 5. C. pods with new beans

  6. 6. A. a seedling

  7. 7. A. pollination

  8. 8. C. germination