Parts of speech review for 3rd grade, built as ten no prep CSI Mini Mystery Detective cases. These grammar worksheets practice nouns, proper nouns, action verbs, irregular past tense verbs, adjectives, comparative and superlative adjectives, adverbs and pronouns, and two mixed review cases bring everything together at the end. Every answer is a word students find inside a real sentence, so this nouns and verbs practice builds the grammar students use when they read and write. Use these parts of speech activities for ELA centers, morning work, small groups, homework, test prep and early finishers, with an answer key for every case. The friendly town theme fits any week of the year, from back to school to end of year review. Just print and go.
Third graders meet a lot of new grammar words this year, and this pack gives each one a real job to do. Students hunt for the noun, verb or adverb hiding in a two-line sentence, match it to a suspect and cross that name off, so they read closely and check their own work at the same time. Every case is self-marking, and one page fits neatly into a fifteen minute slot.
What's Inside
- Ten one-page detective cases on the parts of speech, each with an answer key
- A nouns case where students find the person, place or animal
- Proper nouns for days, months, places, holidays and pet names
- Action verbs, and irregular past tense verbs like went and saw
- Adjectives, and comparing adjectives with -er and -est
- Adverbs that tell how, when and where, and a pronouns case
- Two mixed review cases where each sentence names the part of speech to find
- A reference page explaining each part of speech with examples
- A contents page, teacher instructions, a detective case log and a certificate of achievement
- 30 black and white pages, ready to print
The Cases
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The Bakery Bandit - nouns for people, places and animals
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The Missing Mailbag - proper nouns
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The Zoo Breakout - action verbs
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The Stopped Clock - irregular past tense verbs
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The Faded Paintings - adjectives
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The Vanishing Pumpkin - comparing with -er and -est
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The Silent Show - adverbs for how, when and where
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The Library Lockout - pronouns
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The Harbor Heist - mixed parts of speech review
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The Golden Book - the final mixed review
When to Use This Resource
The cases follow the order most third grade classes meet the parts of speech, so you can teach a lesson on adjectives and hand out The Faded Paintings the same afternoon. Because every answer is a word students find in a full sentence, the pack shows you quickly who can spot an adverb in real writing as well as on a list. The two mixed review cases make a ready-made grammar check before a test or report cards. Use it for ELA centers and literacy rotations, morning work, small group grammar lessons, homework, test prep, sub plans, early finishers, homeschool lessons, and back to school or end of year review.
Grade Levels
Written for 3rd grade, where students learn to explain what nouns, pronouns, verbs, adjectives and adverbs do in a sentence. Confident 2nd graders can work through the first cases, and the pack makes a quick parts of speech review at the start of 4th grade.
Why Teachers Love Mystery Detectives
- Zero prep - print and hand out
- Self-checking: every correct answer crosses off a suspect, so students catch their own mistakes
- Real sentences, so students practice grammar the way they meet it in reading and writing
- A town full of small mysteries that keeps the whole class reading closely
- Prints clean in black and white
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