Study without teacher ?

Hi Benaffleck2016,

Yes! You don't need a teacher or class code to use Khan Academy---all learners can access all of the courses, all for free!

For more information, please see these articles:
https://support.khanacademy.org/hc/en-us/articles/202755420-Can-Khan-Academy-give-me-or-my-child-a-coach-
https://support.khanacademy.org/hc/en-us/articles/115006697467-Can-Khan-Academy-give-me-a-certificate-or-diploma-
https://support.khanacademy.org/hc/en-us/sections/4404526643469-Getting-Started

I hope this helps! Please let me know if there's anything else I can do for you!