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KRIDONABuild quizzes. Track results. — auto-grading, analytics, and student management for educators
11-page quiz and exam builder for teachers, trainers, and educators. Build quizzes with multiple-choice and true/false questions, per-question explanations and pass thresholds. Students take quizzes on a public portal with human-typeable join codes (like CELL42) and Kahoot-style four-color answer buttons — and grading happens server-side, so answer keys never reach the browser. Organize students into classrooms with leaderboards, review auto-graded results with letter grades and grade distribution, and watch Challenge Watch surface the questions students get wrong most. Reusable question bank with answer stats, share links per quiz, and time limits the portal counts down and the server enforces. Multi-user accounts with secure login; every copy runs on its own Cloudflare Worker with a private D1 database.