Brand new to coding and don't know where to begin

I am brand new to coding and don’t know where to begin. I am going to be teaching Code and Design to grade 8s in an elective rotation. Next semester. So will have all of the grade 8s. I think for 17-18 days total. Was wondering where should I begin.??? I will be learning with them. I think in their IT rotation they did Dance party and Minecraft. So they may know more about it than I do. Any help would be greatly appreciated. I am 100% Newbie so any suggestions would be awesome. I am willing to learn first as I don’t start new rotation until January 27th, 2020.