SPRK STEM challenges are fun, interactive activities that challenge students to use creativity and team-work to move through simple steps of the design process in order to build Sphero-based creations. For this challenge, there are optional activities that provide students time to learn about chariots as they were used throughout history. Students will brainstorm designs for their chariots both individually and in groups. The teams will then have sufficient time to build their own Sphero chariot to race. Also, as a class the students build a macro for Sphero to navigate the course.