# Learning hub

> Have a topic explained at your level, follow a roadmap, take a quiz, revise with flashcards, find where you stand and build a project.

The **Learning hub**, in the sidebar, is for learning a topic at your own level.
It uses an AI model, so it is optional and only there if this copy of Rejarsume
has AI set up. An AI model can be wrong, so each answer says to check what
matters against a textbook, your course or the official documentation. Nothing is
kept unless you press **Save**.

## Before you start

It is behind the same **Sign in** and agreement as [AI in the editor](https://shopsalone.com/en/docs/help/ai-assistant.md#start).
You can take the agreement back at any time with **Withdraw my agreement**.

Every tool asks for **Your level**, which is **Beginner**, **Intermediate** or
**Advanced**, and teaches to it. Most ask for **What do you want to learn?** and
some take **Material to learn from (optional)**: your own notes or a passage,
which are then used instead of general knowledge, and which are sent with the
request and not kept.

## Learn

**Explain it** explains a topic, or the material you pasted, with a short answer,
the explanation in sections, an example, what to remember, questions to check
yourself and what to study next. **How much detail?** is **Brief**, **Standard**
or **Detailed**. Then ask a follow-up and press **Ask**: it answers in the light
of what was said, as a tutor would. The latest six questions are sent with each
follow-up, and the conversation is held on the screen only.

## Roadmap

**Make a roadmap** plans what to study and in what order for the weeks and hours a
week you give it. Press **Save** and it appears under **Saved**, where each topic
has a box to tick and the whole has a bar.

## Quiz

**Make a quiz** writes multiple choice questions. Choose an answer and press
**Check**: you are told whether it was right, and why every option is right or
wrong, the one you chose and the others. **Next question** goes on, and **See my
score** shows your score and the questions to look at again. **Save this quiz and
my score** keeps it, and each time you take it again from **Saved** your score is
added.

## Flashcards

**Make flashcards** writes a deck. **Show the answer** turns a card over, and then
**I knew it** or **Still learning** says how you did. A second pass can be through
only the cards you are still learning. **Save** keeps the deck with the cards you
know.

## Assessment

**Ask me questions** writes short questions to answer in your own words, easier
first. **Mark my answers** marks them: each is correct, partly right, not right or
not answered, with what to fix, and you are told where you stand. The score is
counted from the marks, so the two always agree, and a question you left empty is
never marked right.

## Project

**Guide me** suggests a project that teaches the topic, or shapes one you have in
mind, in steps small enough to finish, with what exists when each is done and the
mistakes to avoid. It guides and leaves the building to you.

## Saved

**Saved** lists your roadmaps, decks, quizzes, explanations and assessments, with
progress where there is some. **Open** shows one and **Delete** removes it, after
asking, from this device and from your account. A saved item is a record of your
own, like a resume, and it comes to your other devices when they sync.

## What it will not do

It is told to be accurate, to say when it is not sure, and never to invent a
source, a quotation, a statistic or a link. The server checks the one thing it
can: a web address that nothing you gave it contained is flagged in a yellow
note, because a made-up link is the likeliest thing to be clicked. It cannot check
a fact, so the questions of a quiz and the cards of a deck are for you to confirm.

## Credits

Each request costs credits, taken before the model is called and given back if it
fails. Unless whoever runs this copy has set other prices:

- **Explain it** costs 1 credit.
- **Make a roadmap** costs 2 credits.
- **Make a quiz** costs 2 credits.
- **Make flashcards** costs 1 credit.
- **Ask me questions** costs 1 credit.
- **Mark my answers** costs 2 credits.
- **Guide me** costs 2 credits.

Working through a quiz or a deck costs nothing more. Pressing a button twice, or a
connection that drops and retries, is not charged twice.

## What is sent and what is kept

Only the topic, the material, your answers and the question you chose, and only
when you press the button. Nothing you send or receive is stored by the AI service
or by the server that relays it: what is kept is a count of requests and credits.
The one thing that is kept is what you press **Save** on, and that is yours, in
your account like a resume. See [Privacy](https://shopsalone.com/en/docs/data/privacy.md#ai).