1. There should be an understanding of the biological reason for hygiene. That includes the existance and nature of pathogens, and, especially, their transmission routes. (A word about worms, while eliminating enteric worms may not be an objective of your WatSan program, it can be very helpful to teach about them before teaching about microbes. This is because they follow largely the same transmission routes, but can be big enough to see. Often people have seen them in themselves or their children.)
2.Enquiry approach is based on the idea that people learn more readily when they feel a need to learn the subject matter. Applied in a traditional presentation/discussion format, this means that, rather than simply imparting knowledge, it's better to lead learners through the material with questions, allowing them to supply as much of the explanation as possible.
3. Game based learning is advisable for children. Each game is designed such that, in order for students to play, they must use a concept that has been taught. As you will see, in the photos, the whole group participates, advising the players. The game acts as a drill, an exercise in which students repeatedly call upon what they have learned.
Photos
Game Based Learning for Children
Please note that,while almost all of the tools are used for both adults and
children, these games have not been used for adults.
Discussion for Selection of Hygiene Behavior Indicators is a paper I wrote in relation to an effort, among a group of NGOs, to select a common set of indicators for the measure of behavior change in the hygiene education programs.
Handbook on rapid assessment for household management of diarrhea http://www.unu.edu/unupress/food2/UIN04E/UIN04E00.HTM
Handbook on hygiene evaluation http://www.unu.edu/unupress/food2/UIN11E/uin11e00.htm#Contents
Participatory Evaluation http://nt1.ids.ac.uk/eldis/hot/pme.htm