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The official domain

The address of this site ends in odersa.org. Every service the association runs sits on a subdomain of odersa.org and nowhere else. If the address in your browser’s address bar does not end in odersa.org, this site is not ours.

Free, and no account

Everything is open straight away. No sign-up, no account, no password, no subscription, no advertising. Nothing is held back for those who pay, because there is nothing to pay for.

No data collected

This site does not follow you: no tracker, no tracking cookie, no measurement tool built into these pages, and nothing measured on your device. Our host counts requests in aggregate, as any server that answers does: a total, never a profile. You do not have to take our word for it: open your browser’s developer tools, go to the Network tab, and reload the page. You will see the full list of what the site asks for. Everything comes from odersa.org, nothing goes anywhere else.

Free to reuse

The content is published under the CC BY 4.0 licence. You may copy it, translate it, print it and pass it on, for your classes as much as for the people around you, on one condition only: credit ODERSA.

Organisation pour le Développement de l’Éducation, des Ressources et des Savoirs AccessiblesNonprofit association · France

Our programmes

The programmes, and what is online

Our catalogue holds 7 programmes. Each one has its field, its colour, and the same rule: an action joins it the day it is online and can be visited, not before. The actions themselves are read on the action map, together with the area they apply to.

Information programme

learning to check what you read

This programme holds what we publish about information: stopping before you believe, checking before you share, recognizing the tricks that make a false story look true. The habits are learned on realistic cases rather than abstract rules. They hold up afterwards in front of a headline, a viral image, a shocking statistic, or a studio expert.

1 action online

  • Avant d’y croireCheck a piece of information before believing or sharing it, on training cases that are realistic and entirely fictional.

See it on the action map →

Explore the programme →

Digital programme

learning to handle everyday tasks on your own

This programme holds what we publish about digital independence. It has you do the task instead of listening to it explained: the screen is simulated, a mistake costs nothing, and you start again as often as you need. Writing a message, booking an appointment, spotting a trap, choosing what you share: everyday life, with a hand on the mouse.

3 actions online

  • Clic par clicCarry out the digital tasks of everyday life on simulated screens, where getting it wrong costs nothing.
  • The WorkbenchConvert, shrink and clean up your files in the browser: the work happens on your device, and nothing leaves it.
  • The AI ManualUnderstand how a language model works, what it can do, what it makes up, and when not to use it.

See it on the action map →

Explore the programme →

Health programme

learning to understand your health and find your way through care

This programme holds what we publish about health: understanding your own body, reading medical information without being taken in, knowing who to turn to and when. The association’s rule applies here as everywhere: free of charge, openly licensed, no data collected, and educational content that never stands in for a health professional.

2 actions online

  • Avant les secoursPractice first aid on playable emergency scenes: you decide, your decision plays out, then the official guidance explains why.
  • Words Within ReachBuild a sentence from pictograms and have it spoken aloud, on screen or on paper, when words will not come.

See it on the action map →

Explore the programme →

Environment programme

learning to understand what is at stake and act at your own scale

This programme holds what we publish about the environment: understanding what is at stake, telling an order of magnitude from an impression, seeing what actually gets decided at the scale of a home, a school, or a town. It sticks to established facts and verifiable actions, with no doom and no lecturing.

The actions of this programme are named on the action map when they go online.

Explore the programme →

Animals programme

learning to know animals and respect living things

This programme holds what we publish about animals and the living world: recognizing, observing, understanding what an animal needs, domestic or wild, and measuring what a human presence changes around it. It describes living things as they are, with the rigour expected of educational content.

The actions of this programme are named on the action map when they go online.

Explore the programme →

Rights programme

learning to know your rights and use them

This programme holds what we publish about citizenship: how a public decision gets made, what an election, an appeal, or an association is for, and which rights the law gives every person. It treats equality as a right to know, not an opinion, and never takes a side.

3 actions online

  • By RightDiscover the rights European law already gives you, the same across the Union: you decide, your decision plays out, then the official text settles it.
  • Letters That WorkWrite the letter that gets a result: the right recipient, dated facts, a clear request, a deadline, proof, and no name given to anyone.
  • Plain MoneyUnderstand money before signing: a budget, a loan, a contract, a promise of returns, and the traps that come with them.

See it on the action map →

Explore the programme →

Knowledge programme

learning for the pleasure of knowing

This programme holds what we publish about science, history, and general knowledge: what is known, how it came to be known, and why that is more interesting than the shortened version. It exists for curiosity itself, with no exam waiting at the end.

3 actions online

  • The LibraryRead, print and reuse complete teaching textbooks: free, no account, openly licensed.
  • ODERSA TranslateTranslate in the browser, with the text never leaving the device: a local engine, a dictionary of credited human sentences, an open API.
  • The Sky in Every LanguageRecognise tonight’s sky from anywhere on Earth, and read the names the world’s cultures give to the same stars.

See it on the action map →

Explore the programme →

Person sitting on a bench, face hidden behind the wide-open newspaper they are reading
Reading is not enough: verifying can be learned. That is what the Information programme is for.

The habits of the Information programme

The habits of the Information programme

“Who is speaking? What’s the source? What’s the date? Too good to be true? What if I’m the one who’s wrong?”

Some of the habits from Before You Believe It (Avant d’y croire), as they appear on the site

Each habit is a question to ask before believing or sharing something, and every training case puts it to the test in a concrete situation. These are transferable moves: they work just as well in front of a news headline, a viral image, a talking-head expert, or a shocking statistic, far beyond the site itself.

How we build

How we build

Free, with no barrier

No account, no payment, no ads: the resource opens and works, that’s it.

Open and reusable

Content and data under CC BY 4.0: every resource can be reused, adapted, translated.

Verifiable end to end

The figures we state can be recounted from the resource’s public data, in a few clicks.

The method, step by step

How an action gets here

The 7 programmes above are the shelves, and they do not move. An action joins one the day it is online and can be visited, never on an announcement, and it takes on the colour of its programme. 12 actions sit on those shelves today: the action map names them all, with their format, their languages, the area they apply to and their address.

Real work, free, and verifiable in a click

Partnerships on the ground, support, press: one door, and a reply from a real person.

Write to us

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