A spending calendar

When it will leave, not only how much

A budget with no calendar is a pile. A date by spending says whether two M hit the same week. Pocket money on Monday, a trip on Wednesday, a club on Thursday — three M, one rhythm. With no calendar the club dies on Wednesday.

Filip: everything “sometime in April”. Eliška: 8. an entry deposit, 15. a trip, 20. a club. She sees that the 15th will eat the 20th, if L does not load. She moves W. Filip on the 15th buys a plush, on the 20th has nothing. The calendar was visible. Filip did not look.

The order of days

Time from Cashier (a week vs a month) here gets dates. A subscription on the 20th. A trip on the 15th. The 15th must not empty the 20th.

Deposits: sometimes you pay sooner. A deposit is spending now, even if the trip is later. Write the deposit date, not only the day of the event.

Do not copy the whole family calendar. Your three dates. Parents’ rent does not belong there. Respect of the line.

Inflation and a small job will come. Order first. With no order “more money” solves nothing when everything falls on one day.

Eliška wants to shorten it to “it will be fine somehow”. Filip asks what the lesson A spending calendar 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: By spending a date. Two musts in the same week fight.

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 spending calendar”, you know a word, not the course.

Monday +80 pocket money. Wednesday a trip W 50. Thursday a club M 50. If Wednesday first, Thursday dead. Eliška Wednesday 20, Thursday 50, Monday start 80. A filter of order.

A deposit 100 on the 1st of the month, a trip on the 20th. The balance between the 1st and the 20th must live. It is not “the trip costs 100 only on the 20th.”

Practice numbers, not a bank statement. Eliška has 80 Kč in the want envelope. Filip pushes a step this lesson can name. When Eliška 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: By spending a date. Two musts in the same week fight. When you can say it to a parent or a teacher, you have the core. The rest is practice, not magic.

A shared till has a date of contributions. When it runs out, it is often because the date was sooner than they thought. A calendar shows that in time.

If you skip this, the next lesson in level Planner will stand on fog. Three dates on 14 squares. The fight is visible. Rent is not there. It is not a test for marks. It is a safety net, so “A spending calendar” 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: three dates

Draw 14 squares. Three marks: income, a trip, a must after.

1. Squares. Three marks. Which day is tightest?

2. If the trip +50, what happens to the must after? A cross-out or a move of W.

3. A deposit: write the day of payment, not the day of the event.

4. Do not write parents’ rent into the calendar.

You count when you see a fight of two M in one week. A pile “April” will not hide the fight — it only delays it to anger.

Pocket money: 14 days: mark days of big spending in advance. 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 deposit vs. the day of the event — two dates. 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 subscription: the day it takes into a parent’s calendar. 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: buy supplies the day before, not on the day bread runs out. 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 spending calendar — By spending a date. Two musts in the same week fight.” If they have no time, a slip in the notebook is enough. Stories and class chat are not enough.

Practice: which date counts?

Order.

1. A deposit on the 1st, a trip on the 20th. When did tokens leave?

2. Pocket money Mon, a trip Wed, a club Thu. What threatens Thu?

3. A subscription on the 20th vs. a trip on the 15th. Why must the 15th not erase the 20th?

4. Why does rent not belong in your calendar?

Now you 💪

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

1. Spending has a day, not only a month.
2. A deposit is spending now.
3. I can see two M in one week.

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 calendar = the order of days.
• A deposit ≠ the day of the event.
• A subscription has a tap day.
• Do not copy family rent.
• Têns in the examples (Eliška, Filip) 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 · Điều khoản sử dụng nội dung