Yeah… this was also a 2-day lesson for me. I also added some extensions for students who finished early. Here is the document that I created for those challenges. I find it helpful for my “anti-play” kids who would otherwise work on other homework when they were done.
I also have mixed feelings about talking about for loops without talking about the actual way they work. I get into this a bit for students who want something to “fade” in their digital scenes. I figure that if they ASK how to do it, then it makes sense to show them…