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Separate progress for each person on this browser. These are not password-protected accounts.
Daily review selects up to 20 due concepts. Unseen challenge selects up to 15 never-answered concepts using your chosen time limit.
One unfinished attempt is saved for this profile. Resume or discard it before starting another. A timed attempt keeps counting while you are away.
Discard this unfinished attempt? Answers already submitted in study mode remain in your learning progress. Unsubmitted timed answers will not be scored.
1–240 minutes. Full-length practice suggests 240 as an adjustable study setting, not an official time-limit claim. Study mode is untimed.
Rate your confidence before answering. Study mode locks the first answer and explains it immediately. Timed practice lets you revise answers and confidence until submission. Alternate scenarios and changing math numbers test application of the same concepts.
Your topic dashboard
Recent accuracy uses up to the last 10 responses per concept. First-encounter accuracy separates new material from repeat practice. These are study signals, not a pass prediction.
Completed quiz history
Question navigator — unanswered & flaggedGreen means answered. A star means flagged.
Timed practice keeps counting even after returning home or closing the browser.
Your results
Answer review
Keep a copy of your progress
A backup contains only the selected profile, its progress, saved attempt, and last results. Restore creates a new profile and keeps existing ones. Backups are not password protected.