Word Builders: The Prefix and Suffix Adventure
Materials Needed
- Paper or a notebook
- Pencil, crayons, or colored pencils
- Index cards or small pieces of paper
- Scissors and tape, if available
- A small toy, stuffed animal, or household object for the word-building game
- Optional: a dictionary or child-friendly online dictionary
Learning Objectives
By the end of the lesson, Jillian will be able to:
- Explain that a prefix comes at the beginning of a word.
- Explain that a suffix comes at the end of a word.
- Tell how common prefixes and suffixes change a word’s meaning or job.
- Build and explain at least eight new words using prefixes and suffixes.
- Use words with prefixes and suffixes in original sentences.
Success Criteria
Jillian is successful when she can:
- Point to the prefix or suffix in a word.
- Tell what the added word part means or does.
- Build a real word using a base word and a prefix or suffix.
- Use the new word correctly in a sentence.
Introduction: The Word-Building Mission
Hook: Tell Jillian: “Imagine you have a tiny word machine. You can attach a word part to the front or back of a word to create a new word. What new words could you invent?”
Show or say the word happy. Ask:
- “What happens if we put un- at the beginning?”
- “What happens if we put -ness at the end?”
Guide Jillian to notice:
- un + happy = unhappy
- happy + ness = happiness
Explain: “A word part added to the beginning is called a prefix. A word part added to the end is called a suffix. Today, we will become word builders!”
Quick Vocabulary
| Term | Meaning | Example |
|---|---|---|
| Base word | The main word before something is added | play |
| Prefix | A word part added to the beginning | re + play = replay |
| Suffix | A word part added to the end | play + er = player |
Body: I Do, We Do, You Do
Part 1: I Do — Teacher or Parent Models
Say: “First, I will show you how word parts work. Watch and listen for the base word and the added word part.”
Common Prefixes
| Prefix | Meaning | Example |
|---|---|---|
| un- | not | un + kind = unkind |
| re- | again | re + read = reread |
| dis- | not or opposite of | dis + agree = disagree |
| pre- | before | pre + view = preview |
Common Suffixes
| Suffix | What it can do | Example |
|---|---|---|
| -er | Shows a person or thing that does something | teach + er = teacher |
| -ful | Full of | help + ful = helpful |
| -less | Without | hope + less = hopeless |
| -ness | Turns some describing words into naming words | kind + ness = kindness |
| -ly | Describes how something happens | quick + ly = quickly |
Think-aloud example: “I see replay. The base word is play. The prefix re- means ‘again,’ so replay means ‘play again.’”
Important note: “Not every word part can attach to every word. We need to check whether the new word is a real word and whether it makes sense.”
Part 2: We Do — Build Words Together
Write these word parts on separate cards:
Prefixes: un-, re-, dis-, pre-
Suffixes: -er, -ful, -less, -ness, -ly
Write these base words on other cards:
kind, play, read, agree, help, hope, quick, teach, happy
Take turns choosing one base word and one word part. Say the new word aloud and discuss whether it is a real word.
Guided Practice
- Choose read and re-. What word do you make?
- Choose kind and un-. What does the new word mean?
- Choose help and -ful. What does a helpful person do?
- Choose hope and -less. What does hopeless mean?
- Choose quick and -ly. Use quickly in a sentence.
Think-Pair-Share: Jillian thinks of a sentence using one new word, says it aloud to the parent or teacher, and explains which part is the prefix or suffix.
Quick Check
Ask Jillian to show a thumbs-up for a prefix and touch her shoulder for a suffix.
- unhappy
- teacher
- reread
- kindness
Part 3: You Do — The Word-Building Challenge
Challenge A: Sort the Word Parts
Jillian sorts the following word parts into two groups: prefixes and suffixes.
un-, -ful, re-, -er, dis-, -ness, pre-, -less, -ly
Challenge B: Build and Explain
Jillian chooses at least six combinations from the cards. For each one, she records:
- The base word
- The prefix or suffix
- The new word
- What the new word means
Example:
Base word: kind
Prefix: un-
New word: unkind
Meaning: not kind
Challenge C: Word Detective Sentences
Jillian writes or dictates four sentences. Each sentence must use a different word with a prefix or suffix.
Offer these choices:
- Write a silly sentence about a replayer who plays a game again.
- Write a helpful sentence using kindness.
- Write a story sentence using unhappy or hopeful.
- Write a sentence that uses a word ending in -ly, such as slowly or brightly.
Challenge D: The Mystery Object Game
Place a household object or toy nearby. Jillian chooses a word with a prefix or suffix to describe it.
For example:
- A toy can be colorful.
- A book can be reusable.
- A stuffed animal can be a helper in a pretend adventure.
Jillian then explains the word part she used. If she wants, she can draw the object and label it with her new word.
Real-World Connection
Explain: “Prefixes and suffixes help us understand new words when we read signs, stories, instructions, and messages. If you know that re- means ‘again,’ you may understand words like replay, rebuild, and rewrite even if you have not seen them before.”
Ask Jillian: “Where might you see or hear words with prefixes and suffixes?” Possible answers include books, video game instructions, recipes, schoolwork, signs, and conversations.
Assessment
Formative Assessment During the Lesson
- Listen as Jillian identifies prefixes and suffixes.
- Ask her to explain the meaning of un-, re-, -ful, and -less.
- Check whether she can build real words from cards.
- Ask her to use at least two new words in complete sentences.
Summative Assessment: Word Builder Ticket
Jillian completes the following independently:
- Underline the prefix in reread.
- Circle the suffix in helpful.
- Explain what un- means.
- Build a word using kind and -ness.
- Write one sentence using a word with a prefix or suffix.
Simple Scoring Guide
| Score | Description |
|---|---|
| 4 | Correctly identifies and explains prefixes and suffixes, builds words, and writes a clear sentence. |
| 3 | Understands the main idea and makes only a small mistake. |
| 2 | Needs help identifying or explaining some word parts. |
| 1 | Needs more practice with the difference between prefixes and suffixes. |
Differentiation and Support
For Extra Support
- Begin with only two prefixes: un- and re-.
- Begin with only two suffixes: -er and -ful.
- Use colors: blue for prefixes, green for base words, and red for suffixes.
- Say the word parts aloud while physically placing the cards together.
- Provide sentence starters such as “The word ___ means ___.”
- Allow Jillian to answer orally, draw, or dictate instead of writing every response.
For an Extra Challenge
- Build words with both a prefix and a suffix, such as unhelpful.
- Look for prefix and suffix words in a favorite book or magazine.
- Find a word that can take different suffixes, such as teach, teacher, and teaching.
- Create a short story using at least eight words with prefixes or suffixes.
- Use a dictionary to check whether a word is real and explain its meaning.
Conclusion: Tell What We Learned
Ask Jillian to complete these sentences:
- “A prefix goes at the _____ of a word.”
- “A suffix goes at the _____ of a word.”
- “The prefix re- means _____.”
- “The suffix -ful means _____.”
- “One new word I built today was _____.”
Final recap: “A base word is the main word. A prefix is added to the beginning, and a suffix is added to the end. These word parts can change a word’s meaning or show what kind of word it is.”
Optional Follow-Up Activity
For the next few days, Jillian can keep a Word Builder Journal. Each day, she finds one word with a prefix or suffix, writes the word, underlines the base word, circles the added word part, and explains what the word means.