Turtle Graphics was developed for the programming language "LOGO" in the 1960s for programming beginners. It is still used in various programming languages.
"Turtles" - free software
You can draw various shapes just by combining blocks of instructions.
For next steps
You can also check the concepts of "variables" and "functions" that are necessary when learning more advanced programming.
You can draw fractal shapes using recursive processing. It is also recommended for university students who will learn the basics of computer science.