From this page you can access the modules that form the theoretical training element of the HEAT programme. The thirteen modules cover a wide range of subjects including child and maternal health, hygiene, immunisation, and nutrition. These modules have been created as Open Educational Resources and they can be accessed by anyone in the world, at any time, free of charge. The three maternal health modules: Antenatal Care; Labour and Delivery Care; and Postnatal Care, are also available in Swahili.
Some of them are designed for the upgrade training for the Health Extension Worker programme in Ethiopia - it's the official MOH curriculum, and was designed as a year (or more) long distance learning programme.