> For the complete documentation index, see [llms.txt](https://plus-skill.gitbook.io/plus-skill-whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://plus-skill.gitbook.io/plus-skill-whitepaper/systemary/in-app-element/earning.md). # Earning Every student can learn whenever and as much as they want unless they bought the NFTs lesson to learn with. The student can hold many NFTs lessons in their account, the more NFTs they hold the more benefit to them. Each NFT will contain a package of videos and a bunch of quizzes to test their knowledge and help to boost their motivation. In this case, students can earn a reward and credit for each time they give the correct answer. For the wrong answer, there is a penalization to decrease your credit. You still can earn from your correct answer but the amount of your reward and credit is based on your score. You will need PPT token to : * Upgrade your next level * extend the credit * customize your character * use in game-currencies * others PPT token can be converted to real currency. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://plus-skill.gitbook.io/plus-skill-whitepaper/systemary/in-app-element/earning.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.