Below is a playlist with 20 videos to help you navigate through out Scratch- use them as you need!
You may be asking why is this all important? If so, check out this video!
https://www.youtube.com/watch?v=E_n38GXZgok&t=6s
Here is a video to understand computational thinking!
https://www.youtube.com/watch?v=tIn6cjU0ZZk