You will learn
- Recognise prefixes.
- Know what dis-, mis-, pre- and over- mean.
- Build new words.
- Use the prefix to find meaning.
Version 0.2 · expanded edition · built from cited public sources Content is based on the official frameworks and sources listed under Sources and standards. No official endorsement is claimed. Written in the style of common primary school assessments. No exam result is promised.
Student lesson
- dis- means not or opposite.
- mis- means wrongly.
- pre- means before.
- over- means too much.
Words to know
not or the opposite of
wrongly or badly
before
too much
1. Discover: The mistaken lesson
Ayo disliked waiting. He misread the time and arrived before the lesson. Ms. Bello said, You are early. Please preview the page and do not overwork yourself. The class laughed. Ayo learned to check the clock.
Think: What do the prefixes tell you?
2. Understand: Prefixes that change meaning
Idea 1: dis- and mis-
dis- means not: dislike (not like), disagree. mis- means wrongly: misread (read wrongly).
Idea 2: pre- and over-
pre- means before: preview. over- means too much: overeat.
Idea 3: Build words
Add the prefix to a base word and say what the new word means. Always check it is a real word.
3. Worked examples
Example 1 (I show you): dis-
What does dislike mean?
- not like
Answer: not like
Example 2 (We do it together): mis-
What does misread mean?
- wrongly
Answer: read wrongly
Example 3 (You try): pre-
What does preview mean?
Show the steps and answer
- before
Answer: see before
Did you know?
Many English prefixes come from Latin, such as pre- and dis-.
Why this matters
Prefixes unlock the meaning of hundreds of words.
4. Explore: Prefix builder
Build words with prefixes.
- Choose a base word.
- Add dis-, mis-, pre- or over-.
- Write the meaning.
- Use it in a sentence.
Think about it: what did you notice?
You can build prefix words.
5. Practise
Say it in a sentence
Use these starters when you talk about the lesson. Say them out loud.
- The prefix ___ means ___.
- The base word is ___.
- So ___ means ___.
- I used it in ___.
Guided practice
Question 1. The prefix dis- means ___.
not
Question 2. The prefix mis- means ___.
wrongly
Question 3. The prefix pre- means ___.
before
Independent practice
Level 1: Start
- The prefix dis- means ___.
- The prefix mis- means ___.
- The prefix pre- means ___.
- The prefix over- means too ___.
- Ayo misread the ___.
Level 2: Grow
- Add dis- to agree.
- Add mis- to spell.
- Add pre- to heat.
Level 3: Stretch
- Is dis- a prefix?
- Does pre- mean before?
- Does a prefix come first?
Answers are in the answer key below. Try first, then check.
6. Apply: English in everyday life
Find five words with these prefixes at home or in a book.
Show a sample answer
five words
Another one. Make five new words with these prefixes and write what they mean.
Show a sample answer
a completed task
7. Common mistakes
Fix: Slow down and check your work.
Fix: Study the example first, then try.
8. Lesson summary and revision card
- I can recognise prefixes.
- I can know what dis-, mis-, pre- and over- mean.
- I can build new words.
- I can use the prefix to find meaning.
9. Check and master
Answer all 14 questions. You will see feedback after each one.
Your result appears here after you answer every question.
10. Key takeaways
- dis- means not or opposite.
- mis- means wrongly.
- pre- means before.
- over- means too much.
11. Next lesson
Next lesson: Suffixes. Keep going with the next idea in this course.
Exam practice
These questions are written in the style of common school and international primary assessments. Try them on your own, without looking back. Then check your answers in the marking guide. The marks are shown in brackets.
- What does dis- mean? Give a word. [2 marks]
- What does mis- mean? Give a word. [2 marks]
- What does pre- mean? Give a word. [2 marks]
- What does overeat mean? [1 mark]
- Explain how to work out a word with a prefix. [3 marks]
Total: 10 marks.
Marking guide and model answers
- not [1]; dislike/disagree [1]
- wrongly [1]; misread/misspell [1]
- before [1]; preview/preheat [1]
- eat too much [1]
- find the base word [1]; know the prefix meaning [1]; combine and check [1]
Score guide: 9 to 10 = secure. 6 to 8 = nearly there, revise the parts you missed. Under 6 = work through the lesson again with a grown-up.
Printable worksheet
- The prefix dis- means ___.
- The prefix mis- means ___.
- The prefix pre- means ___.
- The prefix over- means too ___.
- Ayo misread the ___.
- Add dis- to agree.
- Add mis- to spell.
- Add pre- to heat.
- Is dis- a prefix?
- Does pre- mean before?
Homework
Make five new words with these prefixes and write what they mean.
Answer key and marking scheme
| Question | Expected response | Marks |
|---|---|---|
| 1. The prefix dis- means ___. | not | 1 |
| 2. The prefix mis- means ___. | wrongly | 1 |
| 3. The prefix pre- means ___. | before | 1 |
| 4. The prefix over- means too ___. | much | 1 |
| 5. Ayo misread the ___. | time | 1 |
| 6. Add dis- to agree. | disagree | 1 |
| 7. Add mis- to spell. | misspell | 1 |
| 8. Add pre- to heat. | preheat | 1 |
| 9. Is dis- a prefix? | yes | 1 |
| 10. Does pre- mean before? | yes | 1 |
| Total | 10 |
Independent practice answers. Level 1: 1 not; 2 wrongly; 3 before; 4 much; 5 time. Level 2: 1 disagree; 2 misspell; 3 preheat. Level 3: 1 yes; 2 yes; 3 yes.
Quiz answers: 1 B, 2 C, 3 A, 4 B, 5 C, 6 A, 7 B, 8 C, 9 A, 10 B, 11 C, 12 A, Challenge 1 B, Challenge 2 C.
Mastery and remediation
| Objective | Bronze (Developing) | Silver (Proficient) | Gold (Advanced) |
|---|---|---|---|
| O1 Recognise prefixes | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O2 Know what dis-, mis-, pre- and over- mean | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O3 Build new words | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O4 Use the prefix to find meaning | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
Courseversity badge thresholds (overall quiz score): Gold = 90–100%; Silver = 80–89.9%; Bronze = 70–79.9%. A badge is never a full record of progress.
If a learner struggles
- Find the misconception: Rushing without checking. Slow down and check your work.
- Explain another way: use real objects, pictures or actions first, then words.
- Show a simpler example: Re-read the examples slowly and use the sentence frames.
- Guided practice: work through one example together and let the learner try the next one.
- Reassess: use the quiz again or the worksheet.
- Move on when the learner shows Silver-level evidence independently.
For parents and guardians
In this lesson your child practises a key Grade 3 English skill with clear examples and a quiz. You do not need to be an expert to help.
- Listen while your child explains the idea.
- Ask for one new example.
- Praise effort and careful work.
- Ask “how do you know?” after each answer, and listen.
- Praise effort, not only right answers. Mistakes are how we learn.
- Ten to fifteen minutes a day is better than one long session.
Teacher package
1–5. Objectives, prerequisites, materials, preparation, duration
Lesson objectives. Learners will: recognise prefixes; know what dis-, mis-, pre- and over- mean; build new words; use the prefix to find meaning.
Prerequisite knowledge. Multiple-meaning words.
Materials. Chart paper or board, pencils, picture or word cards, a reading book if available. Low-resource options: use chalk or charcoal on a board or wall, drawings in the sand, and objects from the classroom instead of printed materials.
Preparation. Write the key words and examples on the board or on cards before the lesson.
Suggested duration. 45–60 minutes. It can be split into two shorter sessions.
6–9. Teaching procedure, explanation notes, guided and independent activities
Introduction (5 min). Introduce the idea with the opening example.
Explanation (10 min). Teach the key words.
Guided activity (10 min). Practise together.
Independent activity (10 min). Check understanding with the quiz.
Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.
Key questions. What is the key idea? Can I give my own example?
Teacher explanation notes. Move from the spoken word to pictures and then to print. Read aloud often, point to the words, and let learners hear and say before they read and write.
10–12. Differentiation, formative assessment, common misconceptions
Support. Use the sentence frames and work with a partner. Extension. Create a harder example of your own.
Formative assessment. Listen to learners read and explain, ask “how do you know?”, and check the independent work.
Misconceptions. Rushing without checking. Slow down and check your work.
13–15. Assessment questions, answer keys, marking scheme
Use the quiz, the 10-mark exam practice and the worksheet on this page. All answers and marking guides are in the answer sections above. Re-check every answer before use.
16–19. Remediation, enrichment, homework, teacher reflection
Remediation. Re-read the examples slowly and use the sentence frames. Enrichment. Make up your own example and teach it to someone at home. Homework. See above.
Teacher reflection. After teaching, record: which ideas learners understood; which misconceptions occurred; which activities worked; which learners need more practice; and what to improve next time.
Sources and standards
This lesson is based on the sources below, and no official endorsement is claimed. Reference starting points: Common Core State Standards for English Language Arts, Cambridge Primary and the IB Primary Years Programme. Where a standard code is named, it points to the official framework.
Official standards for this topic area. Common Core State Standards for English Language Arts (official site): Grade 3 » Language. These pages list the standards that cover this topic area; read them alongside the lesson.
Research used to shape this lesson. Common Core L.3.4b (determine the meaning of the new word formed when a known affix is added to a known word) and L.3.4; Cambridge Primary English Stage 3 (vocabulary). These sources informed the lesson.