Thanks for this article. 
I went to school in the eighties and now have a teenage son in a government school. I have been made aware of how extremely colonised my school education was when  I compare it to what he is now learning which definitely tries to put South Africa and Africa at the centre, with a focus on indigenous knowledge and a broad and respectful perspective on the contributions from all sorts of different cultures.  I am sure there is still room for improvement, but we shouldn't lose sight of how far we have come.
Now can we talk about science, where they are teaching Creationism as a theory for explaining the formation of the planet, with videos showing how coal deposits were laid down in 700 years after Noahs flood?
Erm....... definitely still room for improvement.