You will not know what you are building until a few minutes before the build.
​Sound like fun? It is! 

Check out www.pickerwheel.com and add your challenge ideas into the wheel. 
More Ideas for STEM Builds:

1. Tall Structures
2. Tiny Dancers
3. Catapults
4. Bridges
5. Mazes
6. Homes
7. Vehicles
8. Slingshots
9. Helicopter
10. Simple Machines

Other Ideas: Use the Career Pathways and have students build something that will be helpful in that career.
For Example: What tool would be helpful for an?

• Agriculture, Food, and Natural Resources- Agricultural Engineers

Or tie the inventions to the UN Sustainability Challenges!