A stall at school: rules

Rules before a lemon

A stall has a place, time, watch, hygiene, a till, a clean-up end. A teacher is a door. A mini-company with no rules is Ondra’s lemonade from a trip till. Till boss writes a sheet like Planner, only for a sale day.

Matyáš builds a table at an entrance where it may not. Sofie a sheet: atrium 12:00–12:25, teacher XY, a till in a money box, clean-up 12:30. A head takes Sofie. Matyáš has lemons in a schoolbag and a ban.

Watch and hygiene

Do not leave money on a counter. Banker a loss. QR only with a teacher. Sceptic.

Allergy: nuts, milk — a sign. It is not a law office. It is manners and school.

Time: a break has a ceiling. A calendar. Who does not make it, it does not extend with no yes — pressure on a teacher.

Sofie wants to shorten it to “it will be fine somehow”. Matyáš asks what the lesson A stall at school: rules 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: A stall = a place, time, watch, hygiene, a till, clean-up. A lemon is after that.

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 “A stall at school: rules”, you know a word, not the course.

Sofie’s sheet 6 lines. Matyáš 0, 3 complaints. Rules saved lemons.

Practice numbers, not a bank statement. Sofie has 80 Kč in the want envelope. Matyáš pushes a step this lesson can name. When Sofie 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 Till boss. 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: A stall = a place, time, watch, hygiene, a till, clean-up. A lemon is after that. When you can say it to a parent or a teacher, you have the core. The rest is practice, not magic.

Partners need rules before they fight about profit. Otherwise a share from chaos.

If you skip this, the next lesson in level Till boss will stand on fog. A practice stall sheet exists. A lemon waits for a place. A street no. It is not a test for marks. It is a safety net, so “A stall at school: rules” 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: six stall lines

A practice sheet. It is not permission. It is paper.

1. A place, time, watch, a till, an allergen, clean-up.

2. Do not leave money on a counter — a sentence.

3. Cross out a range, if time does not make it.

4. A street with no parents on the no.

You count with six lines. A lemon with no place is Matyáš at an entrance. A ban tastes sour.

Pocket money: Pocket money outside a stall till. 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: A trip: a stall only with a trip sheet. 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 on a counter no. 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 project: this sheet is a skeleton. 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 a stall at school: rules — A stall = a place, time, watch, hygiene, a till, clean-up. A lemon is after that.” If they have no time, a slip in the notebook is enough. Stories and class chat are not enough.

I can do six lines. If you cannot see this, let the next lesson wait. It is not shame. It is a hole in the chapter, not in you.

Watch is a door. If you cannot see this, let the next lesson wait. It is not shame. It is a hole in the chapter, not in you.

Hygiene and allergens are not extra boredom — they are must. If you cannot see this, let the next lesson wait. It is not shame. It is a hole in the chapter, not in you.

Three nos here too: do not chase a ranking, do not bypass a payment lock, do not carry blame for rent. When someone hurries for a code from an SMS, those are Banker and Sceptic doors, not a workshop in a rush.

Practice: a sheet, or an entrance?

What first?

1. An atrium + a teacher. Yes?

2. A forbidden entrance. No?

3. Money on a counter. A risk?

4. A street. Why not?

Now you 💪

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

1. I can do six lines.
2. Watch is a door.
3. Hygiene and allergens are not extra boredom — they are must.

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

• Rules > a supply.
• A till is watched.
• Time has a ceiling.
• Sekolah doors.
• Namas in the examples (Sofie, Matyáš) 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 · Ketentuan penggunaan konten