https://www.youtube.com/watch?v=z1aXXjzWke4&list=PLmzkEJ1Zz_...
I've been teaching coding in middle and high school for awhile now, and the things that seem to pop up again and again which most online tutorials skim over is vast. People need to stop designing materials for kids that are just more colorful copies of what adults materials. It ends up turning off a lot of kids that aren't able to grok it right away.