LEARN · EXPLAIN · REVISE

My learning

Read the idea, work independently, then explain what changed.

Recent attempts, corrections and next steps stay in this browser. There is no combined mastery score. Each question keeps its five most recent assessments; the history is capped at 1 MiB. Latest drafts and ever-wrong flags are retained separately.

Continue the last task

Recent wrong answers

Previously wrong, now corrected

Scheduled retries

Next lesson or assessment

Retained unknown records

Backup and restore

The backup includes latest answers, history and the classroom list. Both old v1 and new v2 JSON files are accepted. Preview before importing; conflicts keep local work unless you select an overwrite. Unknown question records are retained.

Choose a JSON backup (up to 16 MiB)