The main resource for your course is Diabetes.ca. Here you can find many supports before and after your education session. Try the Risk Assessment to learn if you or a family member are at risk for type 2 diabetes.
Another great place for information and videos is MyHealth.Alberta.ca. Type diabetes in the search bar and you will find information on many topics.
Healthy Eating for Gestational Diabetes
Gestational Diabetes (Diabetes Canada)
Carbohydrates in Foods
Basic Carbohydrate Counting (Diabetes Canada)
Healthy Snacking to Help your Diabetes (optional)
Sugars and Sweeteners (optional)