This document summarizes the evolution and results of an open online arithmetic course (MOOC) offered by Scottsdale Community College. Over 500 students from around the world signed up, but completion rates were low, with only 13 students completing all lessons. For future offerings, the college plans to increase enrollment to 1,000, shorten the duration to 6 weeks, remove discussion groups to promote more interaction, and advertise the certificate earlier. While MOOCs show promise for community colleges, their potential is still being explored as completion numbers remain a challenge. This initial MOOC was a learning experience for investigating open online education models.