Diabetes prevalence continues to rise worldwide, leading to the increasing use of insulin. This especially applies to developing countries where the needle-and-syringe method of administration remains the most affordable and effective form of hyperglycemic treatment. Competent health care professionals are required to ensure safe insulin initiation. The investigators will evaluate a teaching intervention on insulin initiation for medical students, and whether after experiencing that intervention the use of a checklist, during simulate insulin initiation, improves the education they provide to patients.