Syntaxia is a world held together by stories. Someone has begun corrupting them—removing key details, changing witness statements, and rewriting endings. Each genre contains a new case, and every language challenge restores a piece of evidence.
You are an Investigator. Master the assigned skills, uncover the clues, and decide what really happened.
No email, no password. Your progress saves on this device and to your class record. Keep your recovery code so you can pick up anywhere.
Syntaxia is free practice in grammar, vocabulary, and argument for grades 9–12 — more than 1,000 challenges across 30 skills, plus teacher-created vocabulary lists. Each wrong answer is answered with the specific misconception behind it rather than a red X. Students join with a class code and a first name. No student accounts, no email addresses, nothing to reset.
You get a dashboard: per-skill mastery for every student, your class's weakest skills ranked, and a heatmap of who needs what.
Teacher dashboard → Invite code requiredBuilt by The ELA Innovator.