Grammaropolis

Prosecutor Apostrophe

Prosecutor Apostrophe handles contractions (letter removal), possessives (singular, plural, compound, shared vs. separate possession).

Pick a grade band

"It's my bar."

Prosecutor Apostrophe
One concept, eight grades, four frameworks
Tap an answer to see the exact standard it hits, in all four state frameworks.
Framework
Grades 3-5
Which sentence correctly uses 'its' or 'it's'?
Aligned to CCSS.ELA-LITERACY.L.4.2 in your state's standards.

No score, no sign-in. Tap to answer, then see the standard it hits. Change the grade above to watch the same idea deepen.

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Mark Patrol
Grades 2 through 8 · Teaches Punctuation inside a sentence

A sentence comes in missing the mark inside it. Read the scene, then place the right comma, apostrophe, quotation marks, semicolon, or colon.

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What Prosecutor Apostrophe teaches

Prosecutor Apostrophe handles contractions (letter removal), possessives (singular, plural, compound, shared vs. separate possession).

Prosecutor Apostrophe teaches the same idea across every grade, starting simple and going deep. Here is the whole concept: what it does, the jobs and kinds it splits into, the mistakes to watch for, and a worked example for each.

Prosecutor Apostrophe at work

Apostrophe works two cases. He marks who owns something: the dog's leash. And he stands in for missing letters in a contraction: do not becomes don't. The trap he prosecutes is the plural: dogs means more than one, dog's means the dog owns something. One little mark, two very different jobs.

Concept
Use in contractions

Use an apostrophe to show where letters have been removed in contractions (two words combined into one).

Examples
  • "I do not = I don't"
  • "They will not = They won't"
  • "It is = It's"
Watch out for
  • Confusing 'it's' (it is) and 'its' (possessive)
  • Missing apostrophe in common contractions
  • Putting apostrophe in wrong position
Concept
Show possession with singular nouns

Add an apostrophe and 's' to singular nouns to show that something belongs to them.

Examples
  • "The cat's claws"
  • "The doctor's office"
  • "James's book"
Watch out for
  • Using apostrophe with plural nouns that don't end in 's'
  • Confusing possessive and plural forms
  • Forgetting apostrophe with singular possessives
Concept
Show possession with plural nouns

Add only an apostrophe (no 's') to plural nouns ending in 's' to show possession.

Examples
  • "The students' rules"
  • "The players' schools"
  • "The scientists' main molecules"
Watch out for
  • Adding 's' after apostrophe with plural nouns
  • Using apostrophe with plural nouns incorrectly
  • Inconsistent apostrophe placement
For grown-ups

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"After using it last year, my kids really got it!"

Kate Skibicki, 6th Grade, Bismarck, ND
What your child can now do

The Mayor certifies every finished cycle. Prosecutor Apostrophe's certificate joins the set as the cycle ships.

When a child finishes a cycle, the Mayor signs a certificate naming exactly what they learned. Proof of learning, not a score, and standards-aligned across Common Core, Texas, Florida, and New York.

Hear the song

Prosecutor Apostrophe has a song.

“The Best Apostrophe Song You've Ever Heard”

Ready to learn Prosecutor Apostrophe's rules with Prosecutor Apostrophe?

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