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Science lesson plan · 4th grade (Year 5 in England) · 45 minutes

Senses send information to the brain, which decides what to do

Human body and health

CCSS NGSS.4-LS1-2England: KS2 Y6 Animals, including humansEngland: KS3 Biology: Structure and function of living organisms

Objective and success criteria

Students will: Senses send information to the brain, which decides what to do.

  • 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: Body parts and the five senses

Leads to: Animal senses: echolocation, heat-sensing and more

Materials: Stopwatches, Body diagrams, Mini whiteboards, A diagram or short video clip of the idea, Printed student sheet (below).

Warm-up · 5 min

  • Quick retrieval from earlier learning (Body parts and the five senses). Students answer on mini whiteboards.
  • Show answers together and note who needs support in the main task.
  1. Which body part do you use for hearing a whisper? (eyes / skin / tongue / ears) → earsPrompt: Is it about seeing, hearing, smelling, tasting or touching?
  2. Which of these do you do with your tongue? (smelling a flower / tasting a lemon / seeing a rainbow / feeling a cat's soft fur) → tasting a lemonPrompt: Act out each one. Which body part are you using?
  3. Our senses: which statement is true? (Only fingers can feel touch. / Taste buds can detect sweet, salty, sour and bitter tastes. / We hear with our eyes. / Each part of the tongue can only taste one flavour.) → Taste buds can detect sweet, salty, sour and bitter tastes.Prompt: Think about what each body part does.

Hook · 5 min

  • Ask everyone to find their pulse, then jump for 30 seconds and find it again.
  • Share the objective: Senses send information to the brain, which decides what to do. 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 does this sense organ detect: skin?
  • Step 1: So the answer is: touch, pressure, heat and cold
  • Answer: touch, pressure, heat and cold
  • 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. What does this sense organ detect: nose? (light / sound / smells (chemicals in the air) / touch, pressure, heat and cold) → smells (chemicals in the air)Prompt: Each sense organ detects one kind of information.
  2. Food tastes of less when you have a blocked nose. Why? (Much of what we call flavour comes from smell. / The tongue stops working. / The brain switches off. / Food changes when you are ill.) → Much of what we call flavour comes from smell.Prompt: Try holding your nose while eating.

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. What does this sense organ detect: nose? (light / tastes (chemicals in food) / sound / smells (chemicals in the air)) → smells (chemicals in the air)Prompt: Each sense organ detects one kind of information.
  2. Food tastes of less when you have a blocked nose. Why? (The brain switches off. / Food changes when you are ill. / Much of what we call flavour comes from smell. / The tongue stops working.) → Much of what we call flavour comes from smell.Prompt: Try holding your nose while eating.

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: Body parts and the five senses.
  • Use concrete materials: stopwatches.
  • Give the first step of each question, or a partly worked example to finish.
  • Pair with a confident partner for the guided practice.

Stretch

  • Move on to: Animal senses: echolocation, heat-sensing and more.
  • 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-4.

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

eurekami

Senses send information to the brain, which decides what to do

Name

Date

Score/ 8

  1. Question 1

    You touch a hot pan and pull your hand away before you even think. What is this called?

    • A. digestion
    • B. a reflex
    • C. a dream
    • D. a memory

  2. Question 2

    What does this sense organ detect: eyes?

    • A. smells (chemicals in the air)
    • B. light
    • C. touch, pressure, heat and cold
    • D. tastes (chemicals in food)

  3. Question 3

    Food tastes of less when you have a blocked nose. Why?

    • A. The brain switches off.
    • B. Food changes when you are ill.
    • C. The tongue stops working.
    • D. Much of what we call flavour comes from smell.

  4. Question 4

    What does this sense organ detect: ears?

    • A. touch, pressure, heat and cold
    • B. light
    • C. smells (chemicals in the air)
    • D. sound

  5. Question 5

    How does information get from your fingertips to your brain?

    • A. through your bones
    • B. through the blood
    • C. along nerves, as electrical signals
    • D. through the air

  6. Question 6

    What does this sense organ detect: skin?

    • A. sound
    • B. touch, pressure, heat and cold
    • C. smells (chemicals in the air)
    • D. light

  7. Question 7

    The brain stores information from your senses. How does this help you?

    • A. You can remember dangers and recognise people and places.
    • B. It makes your senses unnecessary.
    • C. It makes you see in the dark.
    • D. It stops you feeling pain.

  8. Question 8

    What does this sense organ detect: tongue?

    • A. tastes (chemicals in food)
    • B. sound
    • C. smells (chemicals in the air)
    • D. touch, pressure, heat and cold

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Answer key: Senses send information to the brain, which decides what to do

  1. 1. B. a reflex

  2. 2. B. light

  3. 3. D. Much of what we call flavour comes from smell.

  4. 4. D. sound

  5. 5. C. along nerves, as electrical signals

  6. 6. B. touch, pressure, heat and cold

  7. 7. A. You can remember dangers and recognise people and places.

  8. 8. A. tastes (chemicals in food)