The admin console: system overview and subjects

Steps

1. Sign in with an administrator account; Bút Nghiên opens the “System overview”.
2. The stat tiles: “Users” (with the number of teachers and students), “Activity in the last 24 hours”, “Classes”, “Exams”, “Attempts” (including guest attempts) and “Subject”. Click “Refresh” to reload; the “Updated at …” line shows when the data was loaded.
3. The “Admin shortcuts” block: “Manage users”, “Manage subjects” and “Teaching tools”.
4. On the “Subject” page: search by subject name or code; click “Add subject”, enter the “Subject code”, “Subject name” and “Description (optional)”, then click “Save”; click “Edit” or “Delete” on a row. The list is split into pages of 20 subjects.
5. The “Teaching tools” group contains the teacher pages, such as Classes, Exams, Assignments, Question banks, Exam blueprints, Rubrics and Analytics — they work the same as for teachers.

Options and limits

Users

Doesn't count guest accounts used to take exams or deleted accounts.

Activity in the last 24 hours

The number of people who signed in or continued a sign-in session in the last 24 hours — only a rough measure of activity, not detailed traffic statistics.

Subject code

2–32 characters: uppercase letters, digits, dashes or underscores. Can't be changed after the subject is created.

Deleting a subject

Only possible when no class, question bank or exam uses the subject; the “In use” column shows how many do. The “Delete” button is disabled for subjects in use.

Common errors and how to fix them

• “Couldn't load system stats.” → click “Try again”.
• “This subject code already exists.” → choose a different subject code.
• “Can't delete: the subject is in use.” → classes, question banks or exams still use this subject, so it can't be deleted.