Welcome to INFOhio's Career Exploration Units. Students in grades 4-5 learn about careers in engineering and feats of engineering such as Ferris wheels and bridges.  These units contain multiple lessons that use INFOhio's digital resources to help students learn, practice, and master key learning standards while learning more about career options in engineering fields such as electrical, mechanical, aerospace and in science and  technology fields such as fuel cell technology and robotics.