Bertie Buitendag graciously presented a full-day's workshop, at the Brainline centre in Montana Pretoria, educating teachers on database concepts. This proved to be exceptionally helpful seeing as database normalisation and other new concepts are being introduced in the Computer Applications Technology curriculum.
As the techteachers domain is no longer registered, the pdf can no longer be downloaded.
Ah, thanks for letting me know. I will correct that as soon as I can.
I have fixed the download link.