"Give me hope Johanna" is song that many recognise, but never realised the import of the lyrics and can be useful to start a project delving into the culture and history even further.
Plays like "Boesman and Lena" and "Blood Knot" are great for classwork because they are relatively simple, with practically no use of extraneous materials: pure word power! And they have an incredibly potent message.
If you have mature students with an angst for the underground scene: Die Antwoord is a guaranteed hit.
Scenes from Jamie Uys films are great for ice breakers, especially the skits. I come from Botswana, and always give a presentation on my context to new students which includes a scene of the Coca Cola bottle falling onto the peaceful bushman village from "The Gods Must Be Crazy".
Relating how South Africans have fought for the British in their wars is also something that can be used to unify our two countries: there's a memorial in Swartkop, Pretoria and there's a couple dotting South Korea: the most famous one is in Pyeongtaek, but I found this one, and don't know where it is
http://2.bp.blogspot.com/-7vZHCxlYrRQ/U6z5B6WyBKI/AAAAAAAAd5s/K1WPhDZh004/s1600/War+Memorial2.jpg