Want / must / later

Three words of a plan, not only of pocket money

Envelopes from Cashier grow here. Must holds the trip (a ticket, entry, food). Want is a souvenir and a mood. Later is a goal in weeks that the trip must not eat, or a reserve for another event.

With no three words a budget is one sack. A sack always wins a want at a stall.

Jakub everything into want, because a trip is a feast. Tereza a ticket into must, a souvenir into want with a limit, 50 into later for a club in a month. At a stall Jakub takes a giant plush. Tereza does not. The club lives. The plush would have killed it.

Labels on lines

A label changes what is crossed out first. W falls before M. L falls only with a sentence out loud and with a parent, when it is someone else’s till.

A trip is not a reason to empty later for a game. That is feast pressure. A feast may have W. It has no right to L.

A shared till may have only M + a reserve. Let each person carry W in their own envelope. Otherwise people argue whose mood is more important.

Time: M of this trip vs. L in three months. A calendar will come. Today a label.

Tereza wants to shorten it to “it will be fine somehow”. Jakub asks what the lesson Want / must / later is for, when a table can do a sum. A sum does not count respect, a PIN, a trap or an envelope. The core is: Each line has M, W or L. A feast does not steal later.

Adults pay the rent. The card, the account and the PIN belong to a parent. A child’s email does not belong here. Pocket-money numbers do not belong on the network. If you break these rules in the lesson “Want / must / later”, you know a word, not the course.

Lines: a bus M, entry M, pizza W, a reserve (a bark L/M — we say M of the trip), a magnet W, a club in a month L. Pizza and a magnet fall first when the ceiling shouts.

Jakub a magnet into M “as a memory, I must”. That is a want in disguise from 準備.

Practice numbers, not a bank statement. Tereza has 80 Kč in the want envelope. Jakub pushes a step this lesson can name. When Tereza uses the core, either it waits for a parent, or it fits the envelope. If not, anger and a hole are left — proof of pressure, not that the lesson is pointless.

Why this right now

You are in the course Money with Martin, level Planner. You can write numbers in a notebook or a table, but the topic is money and decisions, not Excel formulas. The account, the card and the PIN belong to a parent. A child’s email does not belong here. Do not put pocket-money numbers on the network.

This is not the Sheets with Martin course. A table may help, but the mark of success is a decision, not SUM.

You will know this lesson by one sentence: Each line has M, W or L. A feast does not steal later. When you can say it to a parent or a teacher, you have the core. The rest is practice, not magic.

A reserve is a special M. A calendar spreads L in time. With no labels a reserve looks like leftovers for a plush.

If you skip this, the next lesson in level Planner will stand on fog. Six labels. Two W to cross out. One L protected. It is not a test for marks. It is a safety net, so “Want / must / later” is not only a heading.

Four things you will build from the course

The course has four small projects. You do not have to do them all at once. Today you add only what this lesson can do.

Workshop: labels on six rows

A practice trip. Six lines. Labels. Two that fall first.

1. Six rows, each M/W/L.

2. If the ceiling falls by 80, which two fall? They must be W.

3. One thing from L that the trip must not eat. Write it.

4. A till rule: I carry W myself.

You count when W can fall and L lives. Everything M is a lie. It lies with a feast.

Pocket money: Pocket money: the same labels. A trip is only bigger paper. Do not write someone else’s amount, a PIN, an IBAN or “how much a classmate gets” next to it. A rule and a practice number are enough — or an honest zero.

Class trip: The till: ideally M + a reserve. W privately. Do not write someone else’s amount, a PIN, an IBAN or “how much a classmate gets” next to it. A rule and a practice number are enough — or an honest zero.

Game shop: A game: a pass on a trip is W, not M of the experience. Do not write someone else’s amount, a PIN, an IBAN or “how much a classmate gets” next to it. A rule and a practice number are enough — or an honest zero.

Stall: A stall: cost M, decoration W. Cross out decoration first. Do not write someone else’s amount, a PIN, an IBAN or “how much a classmate gets” next to it. A rule and a practice number are enough — or an honest zero.

What to tell a parent with no wage and no account number: “Today I went through want / must / later — Each line has M, W or L. A feast does not steal later.” If they have no time, a slip in the notebook is enough. Stories and class chat are not enough.

Practice: a label, or a disguise?

Match them. Spot a fake M.

1. A ticket. A label?

2. A plush “as a memory, I must”. Why W?

3. A club in a month. Why must the trip not?

4. Why not stuff someone else’s W into the till?

Now you 💪

Go through three checks. By each one, tick in your head: do I see it, or not?

1. I can do M/W/L on a line.
2. A feast does not steal L.
3. The till is not a sack of moods.

If something is missing, go back to the steps above. It is not a test for marks. It is a safety net, so you go on with certainty, not with a mess.

What to take from this lesson

• A label decides what falls first.
• A fake M is a want.
• The till = M + a reserve.
• L is the future, not a souvenir.
• 名前s in the examples (Tereza, Jakub) are made up. Do not put your number, email or photo here.
• Next lesson: When you can do this, go to the next lesson in the same level.

© 2026 Ing. Martin Polak / AlgoRhino · コンテンツ利用規約