on lesson 19, the example is missing a key variable, the "cells" array, which holds all the coordinates of the graph, thus making the example even harder to understand.
additionally, it's extremely silly to not explain how for loops work in the "for loops" lesson, but instead explain them 2 lessons later in the "arrays" section. as a result, the for loops practice-work was a brick wall i was unable to clear without seeking outside help from the godot cafe discord server.
In the section 24 practice question #2, I have zero idea what exactly it's expecting from me. I think this is a solid example of where the program's proclivity for glossing over things leads to hard-to-understand situations in the code. I understand that I can type in "variable_name += 1" to increase that variable by 1, but i have no indication of what should trigger that behavior in the provided scenario.