Tuesday evening, the first full week of proper IGCSE, and I spent twenty minutes staring at a line that went up and then flattened. No numbers on the side. No words along the bottom. Just a proud little mountain of ink, as if the shape itself were the answer.
Our Maths teacher said a graph without labels is a picture. I wrote that down more carefully than the rest of the notes, because it is also a Business sentence. Last month I kept reading headlines about inflation and interest rates, and half of them showed a line going up. The line is not the news. The axis is the news. Up compared with last month is not the same as up compared with last year, and neither of them tells you whether a family can buy the same bread.
In ESL we are practising being precise. Not fancier. Precise. I used to think that meant longer words. It means the difference between “prices rose” and “prices rose for the things we actually buy.” A missing label is a missing word. You can still see a direction, and you can still be wrong about what moved.
I redrew the homework graph and put “weeks” along the bottom and “marks out of 20” up the side. Suddenly it was my last two quizzes, not a mountain. The flat part was me getting comfortable, which is a polite way to say I stopped being scared and also stopped working as hard. That is an incentive problem hiding in a picture. If nobody names the axes, you can admire the shape and miss the story.
Finance, later, will be full of graphs that want to look finished. I want to keep the habit of asking what the silent side is measuring. A beautiful line with no units is like a song with no time signature. You can hum it. You cannot play it with anyone else.
The worksheet is done. The mountain has words now. I feel slightly less proud of the drawing and much more sure of the point, which is probably the first week going to plan.