Hi I ran the introduction as Python code with Pippy this was probably not what you intended yet but it looks good
I added run() to the end of the file it gave errors for .lowercase() so i deleted them Lines of text break in the middle of words it is good how you respond if students type different numbers the instruction to type "done" could be confusing if students type the " print a/b rounds to an integer (which is confusing) printing an undefined constant produces an error message thats not very helpful: that wont work, try something else typo fox -> for Tony _______________________________________________ IAEP -- It's An Education Project (not a laptop project!) IAEP@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/iaep