You don't need computers to teach kids computational thinking, just imagination. Even if you have your Hour of Code project ready to go, you may want to keep this handy.
My idea is to divide the concepts of scratch in various exercises. This is one of the learning methods. It is a resource for consolidate the knowledge Scratch.
I'm Dhif Abdelmoumen,computer teacher i'm from Tunisia. I attended this training because Scratch is a very important learning tool. I thank the tutors of the course, and students too.
I've created a manual for teachers and students, which goal is to help them to take their first steps with Scratch. The book is under CC 3.0 license and it's in Polish language.