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English lesson plan · 6th grade (Year 7 in England) · 30 minutes

What prefixes mean: pre-, sub-, inter-, trans- and more

Vocabulary

CCSS L.6.4.BEngland: KS3 English (vocabulary)England: 11+ English

Objective and success criteria

Students will: What prefixes mean: pre-, sub-, inter-, trans- and more.

  • 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: Prefixes and suffixes

Leads to: Making opposites with un-, in-, im-, il-, ir-, dis- and non-; Advanced prefixes: ante-, hyper-, hypo-, pseudo-, retro-…

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 · 4 min

  • Quick retrieval from earlier learning (Prefixes and suffixes). Students answer on mini whiteboards.
  • Show answers together and note who needs support in the main task.
  1. Which prefix makes a real word from "happy", meaning "not" or "wrongly"? (dishappy / inhappy / mishappy / unhappy) → unhappyPrompt: un-, dis-, mis-, in-, im-, il- and ir- can all mean 'not'.
  2. What does this prefix mean? re- (as in rewrite, replay) (again / before / after / not) → againPrompt: Look at the example words. What do they have in common?
  3. What does this suffix mean? -ness (as in kindness, sadness) (in a way / a person who / full of / the state of being) → the state of beingPrompt: Look at the example words.

Hook · 3 min

  • Show an interesting word in a sentence and ask what it might mean from the clues around it.
  • Share the objective: What prefixes mean: pre-, sub-, inter-, trans- and more. 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: What does the prefix "semi" mean? (as in semifinal, semicolon, semicircle)
  • Step 1: Knowing what a prefix means helps you work out unfamiliar words that contain it.
  • Step 2: semi means "half", as in semicircle, semifinal, semicolon.
  • Step 3: So the answer is: half
  • Answer: half
  • 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. What does the prefix "re" mean? (as in reheat, replay, rebuild) (remove or reverse / between / wrongly / again) → againPrompt: What do the example words have in common?
  2. Which word contains a prefix that means "wrongly"? (mislead / replay / coauthor / superstar) → misleadPrompt: Split each word into parts. Which part could mean "wrongly"?

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 does the prefix "inter" mean? (as in interval, international, interact) (between / across / again / before) → betweenPrompt: What do the example words have in common?
  2. These words share a prefix that means "against". Type it. antiseptic, antisocial, antifreeze → antiPrompt: Look for the letters that appear in every word.

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: Prefixes and suffixes.
  • 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: Making opposites with un-, in-, im-, il-, ir-, dis- and non-; Advanced prefixes: ante-, hyper-, hypo-, pseudo-, retro-….
  • 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-6.

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

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What prefixes mean: pre-, sub-, inter-, trans- and more

Name

Date

Score/ 6

  1. Question 1

    What does the prefix "pre" mean? (as in prepay, prehistoric, precaution)

    • A. wrongly
    • B. out
    • C. again
    • D. before
  2. Question 2

    These words share a prefix that means "out". Type it. exclude, exit, exhale

    Answer

  3. Question 3

    Which word contains a prefix that means "under"?

    • A. replay
    • B. superstar
    • C. misunderstand
    • D. subway
  4. Question 4

    What does the prefix "semi" mean? (as in semicircle, semicolon, semifinal)

    • A. half
    • B. after
    • C. above, beyond
    • D. before
  5. Question 5

    These words share a prefix that means "across". Type it. transatlantic, translate, transparent

    Answer

  6. Question 6

    Which word contains a prefix that means "between"?

    • A. multitask
    • B. postwar
    • C. supersonic
    • D. international

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Answer key: What prefixes mean: pre-, sub-, inter-, trans- and more

  1. 1. D. before

  2. 2. ex

  3. 3. D. subway

  4. 4. A. half

  5. 5. trans

  6. 6. D. international