Teacher Created Resources Stem Starters: Balloon Cars (Tcr20880)Stem Starters Provide Students With Essential Tools To Complete Hands On Projects. When Combined With Everyday Items, These Materials Can Be Used To Design And Execute A Project Using Creative Exploration And The Engineering Design Process. By Approaching A Problem Or A Challenge With This Thought Process, Children Are Able To Make Educated Guesses, Problem Solve, And Learn Without The Fear Of Making A Mistake. Perfect For Individuals Or Small Groups.