This one involved cardboard and make-do, which are little blue screws that screw into cardboard.
The challenge was to create a helmet and chest plate first. Then you could extend the design to include arms, legs, and decorative elements.
All of this took place within about three periods. Then we went on a tour of the school to show off our creations.
STEAM emphasizes design planning: brainstorming, creating, revising, solving problems, taking initiative, building confidence in one's ideas, trial and error, collaborating, using materials and time wisely, and so on. Many of these skills are transferable across the curriculum.
Here are some picture of our creations.