You can give the Educator Agent a file to work from: a worksheet, a past paper, your notes.
Attaching a file
Click Attach in the composer and choose the file, or drag it onto the chat.
Then say what to do with it: "turn this into a self-marking lesson", "write five questions on this passage", "build a tutor that knows this material".
If you are converting an assessment, put the questions and the mark scheme in the same file. Otherwise the agent writes a mark scheme of its own, which may not match yours.