JoSeki marks a student's assignment, points at the mistake without solving it, and lets them redo it. What you get is the part a handed-in assignment can't show you: what they could do on their own, and what they could do after working at it.
Access comes from the student. They invite you to a specific course, you accept, and that's the whole arrangement — there's nothing to set up and nothing to buy.
Already have teacher access? Sign in by email — there's no password to remember.
The first-pass mark on every assignment they had checked — what they could do unaided, before any hint. That is the number a handed-in assignment hides, because by then it has been fixed or copied.
Of the questions marked wrong on the first pass: fixed alone, fixed with help, not yet fixed. Re-checks are free, so a student can go round as many times as it takes, and you see how many it took.
Each wrong answer is filed under a kind — misread the question, wrong method, arithmetic slip, wrong value carried in, rounding — with the marker's own sentence. Over a term that becomes a pattern: "mostly arithmetic slips, the method is right" is a different conversation from "wrong approach every time".
The question that took the most rounds, with what was wrong on each pass. One question, read closely, usually says more than an average.
Every assignment they shared, newest first: the first-pass mark, the final mark, how many passes it took and what was fixed — and, where they shared everything, the marked sheet itself.
Where this student sits among the students who share the same course with you. Never named — the class is a distribution, the student is a point on it.
The same figures rolled up: where the class lands before fixing anything, what share fixed it alone, with help, or not yet — as counts, never as names — and a quiet screen when nothing has been checked since you last looked. Two views along the top: Students (who is sharing with you, and how it is going) and Parents (whether someone at home is seeing any of this — never who).
Nothing to install, nothing to set up, nothing to buy. Teacher access is free.
It does not mark for you and does not replace your rubric. It marks the student's work before they hand it in, so what reaches you has already been tried, and what you see is how it went. After an exam the student can enter your rubric marks section by section; the profile learns from your marks the way it learns from its own.
It does not give answers. Help walks the student through four steps — what the question asks, the first move, the working, the check — and never writes the line for them.
It is not surveillance. "Not yet fixed" is a count with no names. A student who shares results only shares exactly that.
Tell your students: Account → Teachers → add a teacher, with the course. The invitation reaches you by email; accepting it is the whole setup. A school that wants accounts for a class or a department can arrange that on the Organizations page.