Thai schools often ask for a heavy payment as the new year begins in May, and another when the term turns. Households on Ramkhamhaeng already know this. What they often do not see is that the same months also hold a condo fee, a family trip that was promised at New Year, or the last installment on a motorbike. Each bill is bearable alone. Together they empty the cash tin.

A monthly average makes this worse. If the school costs 48,000 baht across the year, an average of 4,000 a month looks calm and is also a fiction. The money leaves in two or three lumps. The map we draw refuses the average. The term months are marked heavier, and the quieter months are left looking quiet, so you can see where a bonus or a gold sale would actually land.

Before the sitting, put the school invoice next to the rent paper and the loan booklet and simply look at the dates. You are not trying to solve it at the kitchen table. You are trying to arrive knowing which month collides. If a grandparent has offered to pay one term, write that as a separate line. Help that arrives in August cannot be drawn as if it arrived in May.

Households sometimes cut food money in June because May took the savings. The sheet is meant to show that cut before it happens, while there is still a bonus month or a piece of overtime to aim at the fee. We do not tell you to earn more. We mark the collision and let the adults in the room decide which payment moves.

If the school has not issued the next invoice, bring last year's and say it may change. A marked estimate is more honest than a blank month that will ambush you later.

A money map is the sitting that gives those term months their own weight. Write to the office when you are ready to name a week.