
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.
4 multiplayer classroom games and 5 virtual labs aligned to Common Core standard L.4.1. The games play on one shared screen and the labs run on each student's device. No student logins, works offline, and every one has a free demo you can try right now.

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

Relative pronouns, verb tenses, modals, commas, quotation marks and confusing words for upper elementary.

Students tag sentence parts, fix errors in a passage, diagnose broken sentences, combine ideas and revise for clarity.

Students tag words in sentences, sort word cards by part of speech and fix words that are used the wrong way.

Players build correct sentences from scrambled word tiles, leaving out decoys, to capture squares.

Students sort sentences, diagnose fragments and run-ons, combine sentences from tiles and repair sentence errors.

Players wager, then spot misspellings, choose confused words and pick correct spellings to race ahead.

Students pick the right homophones, sort words by spelling rule, build words with suffixes and proofread passages.

Students sort revising from editing, reorder a paragraph, cut off-topic sentences, fix sentences and proofread.
The All-Access Teacher License includes every game, every grade and all future games.