This appears to be a pretty complete implementation of the Logo programming language with a web-based IDE. Logo is derived from Lisp and was intended for teaching programming to children. Typical Logo implementations include "turtle" vector graphics, which was the first chapter in the Apple II Logo reference manual and is probably as far as your schoolteacher got with it.<p>I found this overview on the site:
<a href="https://turtlespaces.org/tour/" rel="nofollow">https://turtlespaces.org/tour/</a>