This entire book is about STEM activities focused on school, and what student teams can accomplish. The STEM philosophy of problem-solving can be quite far-reaching across technology and non-technology subject matters. Have students work in teams on these challenges — typically three to four students per team — so they can encourage one another’s creative ideas. Teamwork is important for upper grades; and later, college and the working world, where teamwork and project-based learning dominates. Turn student creativity loose. Let students focus on what they can accomplish on their own campus. It will make their work relevant. The sooner students work in teams, the better.