The gradebook arithmetic nobody teaches you.

Percentages earned, not percentages lost

The number your courseroom shows you in week four is almost never your grade. Most platforms display the average of what has been graded so far, which in week four might be twelve percent of the course. A 68 on that display is not a 68 in the course. It is a 68 on an eighth of it, and the other seven eighths have not been written yet.

So the first move is to stop reading the displayed number and start reading the syllabus table instead. Every course has one: a list of assessment categories with a weight against each, adding to a hundred. That table, not the gradebook, is the thing that decides your term.

The ten-minute sum

Write down three columns: each graded item, its weight, and the score you have if it is marked. Then do two sums, and be honest on both.

The first is what you have banked. Multiply each finished item's score by its weight and add them up. If you scored 80 on something worth 15 percent, you have banked 12 points of the 100 available in the course. The second is what is still live: add the weights of everything not yet marked. That total is your ceiling — the most the rest of the term can still add.

• ✦Banked = each finished score × its weight, added together
• ✦Live = the weights of everything not yet graded, added together
• ✦Best case = banked + live. If that is under what you need, no amount of effort fixes it
• ✦Needed on the rest = (target − banked) ÷ live, which tells you the average you must now hold
• ✦A zero on a 5 percent quiz costs 5 points. A zero on a 30 percent capstone costs your term

What the answer usually turns out to be

Three outcomes, and they call for completely different weeks. If best case is comfortably above your target, you are not in trouble, you are tired, and the fix is a schedule rather than heroics. If best case sits just above target, the term is live but has no slack: every remaining item now has to land, and the ones carrying the most weight have to land well.

If best case is below target, stop working harder immediately. That is the moment to look at a withdrawal date, an incomplete, or a repeat, while those are still options that cost you a fee rather than a grade. Students routinely discover this in the final fortnight, when every one of those doors has already closed. The arithmetic is unpleasant precisely once, and much more unpleasant later.

Weight tells you where the next four hours go

Once you know the live total, the question of what to work on answers itself. Effort should follow weight, and it almost never does on its own, because the small items have the nearest deadlines and the large ones feel distant enough to postpone.

A worked case: a course with weekly discussions at 20 percent total, three papers at 45, and a final project at 35. Students pour hours into discussions because they arrive every week and feel urgent. But an entire semester of discussion posts is worth less than the final project alone. If you have six hours this week and both are open, five of them belong to the project. That feels wrong and is right.

The same logic decides what to abandon. If you genuinely cannot do everything, drop the item with the lowest weight per hour it demands — and drop it deliberately, having done the sum, rather than by running out of time and letting the calendar choose for you.

Two traps inside the table

The first is the gate. Some courses require a passing score on one specific component — a proctored final, a clinical evaluation, a competency assessment — regardless of the total. Where a gate exists, the weighted sum is no longer the whole story, and that item stops being negotiable no matter what its percentage says. Read the syllabus for the words must pass, minimum, or required to progress.

The second is the dropped score. Plenty of courses drop the lowest quiz or the lowest discussion week. That single sentence changes the arithmetic more than students expect, because it converts one disaster into a free absence. Find out whether your course does it before you spend a weekend rescuing a quiz that was going to be discarded anyway.

Do it in week two, not week nine

The whole exercise is worth most when it is worth least emotionally. Done in week two it is a planning tool: it tells you which three items decide the course, and you build the term around them. Done in week nine it is triage, and triage recovers less per hour than planning does.

This is the first thing a mentor here does with a new course, before any drafting: the syllabus and the gradebook become one chart of every graded item with its date and its weight, and that chart is what the term is then run against. If you would rather not do the sums yourself, that chart is the first thing handing over a course produces, and you get it on day one. But the arithmetic is yours either way, and it takes ten minutes.

Tell the guild your tale.

Name the course, the program and the date it is due. A mentor credentialed in that subject reads it and replies with counsel and a figure within two hours. The reading costs nothing, and sometimes the answer is an honest no.