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English lesson plan · 4th grade (Year 5 in England) · 60 minutes

Prefixes sub-, inter-, super-, anti- and auto-

Vocabulary

CCSS L.4.4.BEngland: Y3/4 Spelling (prefixes sub-, inter-, super-, anti-, auto-)England: Y3/4 Vocabulary

Objective and success criteria

Students will: Prefixes sub-, inter-, super-, anti- and auto-.

  • 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: What does the prefix mean? (mis-, over-, non-, pre-, dis-)

Leads to: Greek and Latin word parts: tele, graph, port, aqua, scope; Make verbs with -ify, -ise/-ize, -ate and -en; Verb prefixes de-, dis-, mis-, over- and re-

Materials: Word cards, A thesaurus or dictionary, A short text with the target words, Mini whiteboards, A short model text on the board, Printed student sheet (below).

Warm-up · 6 min

  • Quick retrieval from earlier learning (What does the prefix mean? (mis-, over-, non-, pre-, dis-)). Students answer on mini whiteboards.
  • Show answers together and note who needs support in the main task.
  1. What does "mislabel" mean? (label wrongly / label before / label too much / label again) → label wronglyPrompt: Split the word into prefix + root.
  2. Use the clue in brackets. Which word fits? I ___ the step and tripped. (judged it wrongly) (prejudged / rejudged / misjudged) → misjudgedPrompt: Read the clue in brackets.
  3. Type the new word. Add a prefix to "sleep" to make a word that means "sleep too long". → oversleepPrompt: Which prefix has that meaning?

Hook · 6 min

  • Show an interesting word in a sentence and ask what it might mean from the clues around it.
  • Share the objective: Prefixes sub-, inter-, super-, anti- and auto-. Read the success criteria together.

I do: model it · 12 min

  • Work through the example out loud, saying why you do each step, not just what you do.
  • Example: What does "submarine" mean?
  • Step 1: These prefixes come from Latin (sub-, inter-, super-) and Greek (anti-, auto-).
  • Step 2: So the answer is: a ship that travels under the sea
  • Answer: a ship that travels under the sea
  • Pause after each step and ask a student to say what comes next.

We do: guided practice · 12 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 "international" mean? (a very large nation / against a nation / between nations / under a nation) → between nationsPrompt: Find the prefix and think about what it means.
  2. Which prefix completes the word? ___clockwise (against the clock's direction, UK) (sub / inter / anti / auto) → antiPrompt: Read the clue in brackets.

You do: independent practice · 17 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 · 7 min

  • Two questions on their own. Sort answers into got it / nearly / not yet to plan the next lesson.
  1. Which prefix completes the word? ___marine (a boat that travels under the sea) (sub / inter / super / auto) → subPrompt: Read the clue in brackets.
  2. What does "submerge" mean? (put far above water / put against water / put under water / put between waters) → put under waterPrompt: Find the prefix and think about what it means.

Watch out for

  • Picking a "bigger" synonym that doesn't fit the meaning.
  • Ignoring the clues in the rest of the sentence.

Support and stretch

Support

  • Review first: What does the prefix mean? (mis-, over-, non-, pre-, dis-).
  • Use concrete materials: word 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

  • Move on to: Greek and Latin word parts: tele, graph, port, aqua, scope; Make verbs with -ify, -ise/-ize, -ate and -en; Verb prefixes de-, dis-, mis-, over- and re-.
  • 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/english/grade-4.

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

eurekami

Prefixes sub-, inter-, super-, anti- and auto-

Name

Date

Score/ 8

  1. Question 1

    What does "antiseptic" mean?

    • A. a liquid under the skin
    • B. a liquid that cleans itself
    • C. a liquid full of germs
    • D. a liquid that works against germs
  2. Question 2

    Which prefix completes the word? ___septic (fights against germs)

    • A. inter
    • B. super
    • C. anti
    • D. auto
  3. Question 3

    What does "interact" mean?

    • A. act under someone
    • B. act with each other
    • C. act against something
    • D. act by yourself
  4. Question 4

    Which prefix completes the word? ___star (a performer who is far more famous than most)

    • A. sub
    • B. super
    • C. anti
    • D. auto
  5. Question 5

    Which prefix completes the word? ___way (a railway under the ground)

    • A. sub
    • B. super
    • C. anti
    • D. auto
  6. Question 6

    What does "supersonic" mean?

    • A. faster than the speed of sound
    • B. slower than sound
    • C. against noise
    • D. under the sound
  7. Question 7

    Which prefix completes the word? ___market (a very large shop)

    • A. sub
    • B. inter
    • C. super
    • D. anti
  8. Question 8

    What does "antifreeze" mean?

    • A. a liquid that works against freezing
    • B. a very cold liquid
    • C. a liquid that freezes quickly
    • D. a liquid between two layers

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Answer key: Prefixes sub-, inter-, super-, anti- and auto-

  1. 1. D. a liquid that works against germs

  2. 2. C. anti

  3. 3. B. act with each other

  4. 4. B. super

  5. 5. A. sub

  6. 6. A. faster than the speed of sound

  7. 7. C. super

  8. 8. A. a liquid that works against freezing