The courses mainly focus on the conceptual theory of STEM education. There are 19 chapters in total - they take about 5.5 hours. The courses include basic STEM theory, case study sharing, how to create teaching plans, and also share the idea on how to use teaching tools during class. Please note that taking a STEM.org Certified online course does not necessarily mean that you will be certified. You must also register for the exam time and pass the exam to be certified.