I am a primary school teacher from the Netherlands. I've recently started teaching my 6th graders how to code with help of Kodu.
I've made 2 video-tutorials on how to make a Space Invaders multi level type of game. More are on the way.
Perhaps useful for people that want to do more advanced coding with Kodu.
https://www.youtube.com/watch?v=Sw8VXjceOIU First Lesson
https://www.youtube.com/watch?v=hzWEwj4LR7M Second Lesson
https://www.youtube.com/watch?v=8HsaogURjtw A Raptor: Call of the Shadows type of game, video-lessons will follow later on.
Hope you enjoy using Kodu in elementary school aswell, would love to hear how you use it.
Erwin van Harmelen