Welcome back to another week! Today, teams collected their materials and started building! There are a few design requirements:

1. The houses can be no larger than 10x10cm.
2. The house must have a door.

Beyond those, the designs are up to each group. Unused building materials can be exchanged for money or other items, and several groups made changes to their initial designs on paper once they’d started building the real thing. The most common building materials in each class were construction paper and cardboard, with the least popular being cotton. Those reading this will get a little hint, since cotton is actually a great material to use. It mimics the way we insulate our houses in real life when it’s spread out to cover a larger portion of the house. Tomorrow, we’ll start testing prototypes.