Sophia courses are designed using a problem-based learning model. You can expect to engage in real world scenarios. To assist you in solving these Challenges, we provide tutorials that help you understand the key concepts behind each problem.
Each Challenge encompasses an average of 5-10 practical problems to solve. You have multiple attempts to solve these problems and you may leave and return to Challenges whenever you want to continue your learning and improve your score (as long as you have remaining attempts). You must attempt all of the Challenge questions at least once in order to advance to the Milestone for that unit.