A backup is dead until IT dies. Then one comes alive, not five.
IT fails for a team too. An account signed out, network down, a cable gone. A backup is a PDF and a downloaded file where a parent or school can reach. It is not sending five copies into chat. Five copies are a shadow again with a different sentence. The day before: File → Download. Check by opening on another PC with an adult. The original on Drive still counts as the truth. The backup sleeps. When the original will not go, you open the PDF. One sentence what it is about must be the same as in the original. Do not write a password into a backup. Someone else’s USB for a moment no. A public disk with class photos no. A school channel. A parent. Restricted. The same door as with sharing. In the morning at the board it is late to download a network that is falling. A parent holds the account. Do not write a password into a backup. Kids’ emails in the file no. Today you download a PDF and open it elsewhere. In the morning at the board it is late to download a network that is falling.
The backup was chat with an old sentence. In the morning IT failed. They opened a shadow. The teacher heard old speech. The new one was in the original, which would not go. Nobody was allowed to lend a password. Right. But a PDF was missing. Sofie with Filip had a PDF yesterday, original Drive, in the morning the same. The cable failed. The PDF went. The sentence the same. The team breathed. A parent opened the PDF in another program. The title sat with the original. Sofie wanted to send the PDF into chat as the truth. Filip said no. The original on Drive counts while it lives. The PDF sleeps. When the original will not go, the PDF comes alive. One sentence must stay the same.
The day before. Not in the morning at the board. The network falls just when you want it for a download.
The original lives. The backup sleeps. Chat does not lie as the truth.
In the original in Slides: File → Download → PDF Document and also PowerPoint, when school wants it. Save on a parent’s Drive. Open both. Does the sentence on the title sit with the original? In PowerPoint File → Export → PDF and a copy on a parent’s OneDrive. USB only by school. Check on another PC with an adult. An account password not on a scrap by USB. A backup is a file, not a key to Drive. Do not send old chat with shadows on. You do not have to delete school history against rules. Just do not set a shadow as a hand-in. Checklist: backup done yesterday. Today the original. When IT dies, a PDF. Passwords no. Kids’ emails in the file no. Class photos on a public disk no. USB only by school. Check with an adult. Do not stick an account password on USB. A backup is a file, not a key to Drive. Do not send old chat with shadows as a hand-in. Checklist: backup done yesterday. Today the original.
Wrong: chat with an old sentence as a backup, in the morning a shadow on the screen.
Right: a PDF yesterday, original Drive, the same sentence, a cable may fail.
Five live copies are not certainty. They are five chances a teacher opens the wrong one. Tell a parent the folder where the PDF is. When they do not know, a backup is not there. It is hidden. Open the PDF outside Slides. Check that in chat you do not send another version as a backup. A PDF on a parent’s Drive, opened elsewhere. The original counts. Chat is not a backup. A password on USB no.
Someone else’s USB for a moment and a public disk with class photos no. A school channel. A parent. Restricted. The same rules as with sharing.
Four things you will build in this course
The course has four small projects. You do not have to do them all at once. Today you add only this:
🎯 A hobby in 5 slides
Five slides about something you like doing. One sentence about what it is. No paragraphs from your notebook.
Hobby: a PDF carries even with no animations. Animations in a backup die anyway.
📚 A report
Eight slides for school: a start, three proofs, an end. The title on every slide is a sentence, not “Slide 3”.
Report: eight slides in one PDF, not eight attachments.
📊 Survey results
A chart from a table (not a screenshot from chat) and under it where the numbers come from.
Survey: download the table too, or write the number on the slide. A screenshot from chat is not a backup.
⚖️ A defence
You say one sentence, show proof, answer “and what if…”. If you do not know, you say I don’t know.
Defence: a backup must carry the same sentence. Otherwise you defend a shadow.
Download, open elsewhere, a checklist
You do not send chat. You download to a parent’s Drive and check opening.
-
In the original File → Download → PDF Document. Then a copy of the presentation too, when school wants it. Save on a parent’s Drive. In PowerPoint File → Export → PDF.
-
Open the PDF on another computer or in another program with a parent. Does the title sit? Do numbers sit? Yes. Do not send old chat with shadows as a hand-in.
-
USB only by school. Check with an adult. Do not stick an account password on USB.
-
Into a comment on the title: backup PDF, where it sits, the day. No passwords. No kids’ emails.
-
Present (F5) the original still as the truth. Do not touch the PDF while IT lives. Otherwise two truths again.
Where does the PDF sit?
When a parent does not know, a backup is not there. It is hidden.
-
Tell a parent the folder where the PDF is.
-
Open the PDF outside Slides. Does it go?
-
Check that in chat you do not send another version as a backup.
Now you 💪
- A PDF exists on a parent’s Drive and can be opened.
- The original still counts as the truth.
- A password is not on a scrap by USB.
Done when: The team has a checked PDF on a parent’s Drive. The original stays one truth.
What to take from this lesson
- A backup the day before.
- A PDF plus a place a parent can reach.
- Chat is not a backup.
- The original counts while it lives.
- A password and class photos into a backup no.
- Names in the examples (Sofie, Filip) are made up. Do not put your number, email or photo on a slide.
© 2026 Ing. Martin Polak / AlgoRhino · Content usage terms