This easy worksheet introduces third graders to the meanings hiding inside affixed words like "misspell," "teacher," and "unable." In Fix the Sentence, students rewrite three statements that wrongly define mis-, -er, and un-. Fill in the Blank lets them turn "fast" into "faster" and "tall" into "tallest," plus explain what "breakable" means. A True or False round checks whether "misread," "washable," and "tallest" use their suffixes correctly.
Working through these examples helps third graders read longer words by chunk, building a strategy they can use across reading, writing, and spelling all year long.
Style:
Prefixes and Suffixes
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
The prefix mis- in "misspell" means to spell again.
Rewrite: The prefix mis- in "misspell" means to spell wrongly.
2. Fix the sentence:
The suffix -er in "teacher" means without teaching.
Rewrite: The suffix -er in "teacher" means a person who teaches.
3. Fix the sentence:
The word "unable" means to do something before.
Rewrite: The word "unable" means not able.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. The prefix mis- means wrongly.
2. Adding -er to "fast" makes the word faster.
3. The word "breakable" means able to break.
4. Adding -est to "tall" makes the word tallest.
Part C: True or False?
Read each statement. Circle True or False.
1. The prefix mis- in "misread" means to read incorrectly.
True False
2. The suffix -able means without, as in "washable."
True False
3. The word "tallest" uses the suffix -est to mean the most tall.
True False
Prefixes and Suffixes
★ Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1) Fix the sentence:
The prefix mis- in "misspell" means to spell again.
Rewrite: The prefix mis- in "misspell" means to spell wrongly.
2) Fix the sentence:
The suffix -er in "teacher" means without teaching.
Rewrite: The suffix -er in "teacher" means a person who teaches.
3) Fix the sentence:
The word "unable" means to do something before.
Rewrite: The word "unable" means not able.
★ Part B: Fill in the Blank
Write the missing word or number on each line.
1) The prefix mis- means wrongly.
2) Adding -er to "fast" makes the word faster.
3) The word "breakable" means able to break.
4) Adding -est to "tall" makes the word tallest.
★ Part C: True or False?
Read each statement. Circle True or False.
1) The prefix mis- in "misread" means to read incorrectly.
True
False
2) The suffix -able means without, as in "washable."
True
False
3) The word "tallest" uses the suffix -est to mean the most tall.
True
False
Ready to Practice?
Complete each section carefully.
10 Questions
15-20 minutes
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