Grade 3 worksheet focusing on writing sentences with prefixes and suffixes to demonstrate word meaning changes.

The worksheet you've uploaded is a Grade 3 vocabulary exercise focused on prefixes and suffixes, specifically how they change the meaning of words. The task asks students to:

1. Write a sentence for each root word.
2. Write another sentence using the same root word with a prefix or suffix (e.g., adding "in-" to make "inactive").

Let’s go through each word and provide example sentences that demonstrate both the base word and its modified form.

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✔ 1. active

- Root word (active):
*She is very active in her school's drama club.*
*(Meaning: engaged, energetic)*

- With prefix (inactive):
*After the injury, he had to stay inactive for several weeks.*
*(Meaning: not active; resting)*

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✔ 2. trust

- Root word (trust):
*I trust my best friend to keep my secrets.*
*(Meaning: believe in someone’s honesty or ability)*

- With prefix (distrust):
*The detective distrusted the suspect because of his nervous behavior.*
*(Meaning: lack of trust; suspicion)*

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✔ 3. cancel

- Root word (cancel):
*The teacher canceled the field trip due to bad weather.*
*(Meaning: to stop or call off an event)*

- With suffix (cancellation):
*The cancellation of the concert made many fans disappointed.*
*(Meaning: the act of canceling something)*

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✔ 4. end

- Root word (end):
*We reached the end of the book after reading all night.*
*(Meaning: the final part of something)*

- With suffix (endless):
*The homework felt endless, and I couldn’t wait to finish it.*
*(Meaning: without end; continuing forever)*

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🔍 Summary of Concepts:

- Prefixes (like *in-*, *dis-*) are added before a word to change its meaning.
- *in-* = not (e.g., inactive = not active)
- *dis-* = opposite or lack of (e.g., distrust = lack of trust)
- Suffixes (like *-ion*, *-less*) are added after a word.
- *-ion* = action or process (e.g., cancellation = the act of canceling)
- *-less* = without (e.g., endless = without end)

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✔ Final Answer (Sentences for Worksheet):

| Word | Sentence (Root) | Sentence (With Prefix/Suffix) |
|------------|-------------------------------------------------------|----------------------------------------------------------------|
| active | She is very active in her school's drama club. | After the injury, he had to stay inactive for several weeks. |
| inactive | — | — |
| trust | I trust my best friend to keep my secrets. | The detective distrusted the suspect because of his nervous behavior. |
| distrust | — | — |
| cancel | The teacher canceled the field trip due to bad weather. | The cancellation of the concert made many fans disappointed. |
| cancellation | — | — |
| end | We reached the end of the book after reading all night. | The homework felt endless, and I couldn’t wait to finish it. |
| endless | — | — |

> ✔ Note: Students should write one sentence for the root word and one for the derived word (with prefix/suffix). The blank lines allow space for writing.

This activity helps build vocabulary and understanding of how prefixes and suffixes alter meanings—key skills for reading comprehension and writing.