Hi John,
Fantastic scheme and well thought out lessons here. The idea of teaching them scale and how to use the google earth ruler is great. The students would love the story of Grace and there are numerous videos in the Mindrising website that show similar projects. These could be used to inspire the children. I like the idea of the students presenting their world to other classes and in doing so reinforcing what they have learned. The building process will take quite some time and i think it would be advisable to have specific examples of what rooms and parts of the jail are must haves and what other parts could be added later. This will ensure that the students get the basic part built and those who are extra savvy on in Minecraft can add in the extra features. Well done
