Grammar Detective — Find and Fix the Errors

Teams tap the one wrong word in each sentence and fix it to claim cases on the board.

Grades 3–8Capture gridSolo or 2–4 teamsNo student loginsWorks offline

Try it free with your class: the demo runs right in your browser for 5 minutes. No sign-up needed.

Or get every game, including all future games, with the All-Access Teacher License for $150.

Grade versions included

Grades 3–5: Agreement, verb tenses, irregular verbs and plurals, pronouns and mixed-up words
Grades 6–8: Pronoun case, indefinite pronouns, verb mood and shifts, modifiers, wordiness and formal style

Subject-verb agreement, verb tenses, irregular verbs and plurals, pronoun case and agreement, confused words, concise and formal language

OAS Standard 5: Language

Common Core: L.1 · L.3

Open the game file in any web browser: Chromebooks, laptops or your smartboard. No accounts, no student logins and no internet needed once it's downloaded.
The download has a separate file for each grade band. Open the one that fits your class, enter 2–4 players or teams (or solo practice) and press Start.
Students take turns on one shared screen, so the whole class can play together on a projector or smartboard.
Each purchase includes the game files and a one-page Quick Start guide.