Here a couple of links in dutch, french and English with info on how to learn Kodu to kids:
In het Nederlands:
http://www.bs-windekind.be/Computerhuisje/Afbeeldingen_downloads/Programmeren%20met%20KODU.pdf
Vidéos
Les1: Basis
https://www.youtube.com/watch?v=NpY6-qIJMUg
Les2: Uitgebreid
https://www.youtube.com/watch?v=qCFxZU-1dqo
Les3: Vijand
https://www.youtube.com/watch?v=ZRF7cgOQHwM
Les4: Padden
https://www.youtube.com/watch?v=qe8pEuvKKEo
Les5 : Race Game
https://www.youtube.com/watch?v=gwQG-BcWZhs
Getting started with Kodu Game Lab
http://www.cs.unb.ca/~wdu/gamecamp/kodu-manual-2010.pdf
Tutorial pdf:
http://resources.hkedcity.net/downloadResource.php?rid=1356004239&pid=1142185599
Videos
Basics :
https://www.youtube.com/watch?v=XXhJ1_ijE7k
Football :
https://www.youtube.com/watch?v=zRZp27K6dUc
Racing Game :
https://www.youtube.com/watch?v=eRJuEm0-vSA
Kodu en français
Installer : http://jdolle.simdif.com/programmation_jeux.html
Initiation :
http://edutechwiki.unige.ch/fr/Kodu
Vidéos
Leçon 1:
https://www.youtube.com/watch?v=xdxztxjJu98
Partie2 :
https://www.youtube.com/watch?v=gfePm7VpK4A
Partie3 :