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"I didn't know where to start" — the most expensive sentence in high school math

2026-09-21

There's a specific moment worth understanding, because it decides more marks than almost anything else in a math or science course.

The student reads the question. They understand it. And then nothing happens, because they don't know what to do first.

What follows is usually one of three things: they skip it, they stare at it for eight minutes, or they start something random and abandon it halfway. All three score close to zero, and none of them are caused by not knowing the material.

Why the first move is worth so much

Two reasons.

One: it's usually the rest of the question. In most high school problems, if you choose the right opening move, the path to the answer follows. Choosing the right first move is not one step out of six — it's the step that determines the other five.

Two: it earns marks even when the answer is wrong. This is the part students don't believe until someone shows them.

Alberta's own guidance to Math 30-2 students on the written-response section says it plainly: students should attempt every problem, because an attempt at a solution may be worth partial marks. Each written-response question is scored out of 7, built from a 1-mark part and three 2-mark parts. Getting the setup right and then fumbling the arithmetic on the last line is not a zero. Leaving it blank is.

So the student who writes "I need to find the non-permissible values, so I set the denominator to zero" and then makes a mistake scores meaningfully more than the student who writes nothing at all. Every year, students hand in blanks on questions they could have partially answered.

Why they leave it blank anyway

Because they've been taught, implicitly, that the point is the answer. A wrong answer feels like a failure worth hiding. So the page stays empty rather than showing something imperfect.

That's a belief problem, and it's fixable with one sentence: the marks are for the work, not for the number.

Alberta's markers make the same complaint from the other side. On the directing word determine, they report students giving a solution and showing no supporting work, or incomplete work. The number is right there on the page. The marks aren't, because determine requires the formulas, the procedure and the calculations behind it.

Both failures come from the same idea: that the answer is what matters. It isn't. The route is what matters.

How to build the first move as a habit

Say what's given, out loud. Not what's asked — what's given. Read the question and list the specific facts, numbers and details it hands you. Nothing more, nothing less than what's there. Half the time, the first move becomes obvious once the given information is written down, because there are only so many things you can do with it.

Write the move before doing it. One line: "I'm going to use X because Y." It takes eight seconds and it forces a decision instead of a drift.

Commit for two minutes. If it's wrong, two minutes is a cheap discovery, and the crossed-out attempt often shows enough thinking to be worth something. Eight minutes of staring shows nothing.

Never hand in a blank. If the clock's gone, write the setup. Write the formula. Write what you'd do next if you had time. Some of that scores. Blank never does.

What to look for on a returned test

Get the paper out and find the questions that lost marks. Then ask which kind of loss it was:

Those four look identical from the report card. They need completely different responses.

The bit parents can do

When your kid says "I don't know where to start," resist telling them where to start. That solves tonight and nothing else.

Ask instead: "What does the question give you?"

They'll list it. Nine times out of ten, they'll answer their own question in the middle of listing it, and they'll have done it themselves — which is the only version that's still there next week.


Joseki makes students choose the first move rather than showing it to them. Get it right and the marks follow; get it wrong and you find out immediately, while it's still cheap.

See how it works →


Source: Alberta Education and Childcare, Mathematics 30–2 Information Bulletin 2025–2026, alberta.ca

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