P6a have been designing and creating windmills from next to a strict criteria. They had to plan out their design and then adapt this as they encountered problems  in creating their windmill.

Each windmill had to be:

3D

At least 30cm tall

have 3-6 blades

blades had to turn

independently support itself.

Children built upon skills and knowledge they had previously learned when looking at bridges and creating thir Ferris wheels.