Can't type in terminal

In order to increase my knowledge of python after completing my high school computer science courses I started the python certification that you guys offer. I found the introduction very useful as it taught me stuff that my high school never taught. But when I started the first hand-on typing course (creating an Ceaser cypher) the terminal won’t let me type in text. I clicked on the terminal; I disabled all my extensions & I even checked that python was installed. Can someone please help me.

You cannot type in the terminal. You need to type in the editor.

Is that the black box with the blinking square, because that’s what im refering to.

You need to type code into the editor, to the left where the number 1 is (indicating line number 1)

The console/terminal area is only for output.