A Ghanaian woman living in the UK has produced a series of videos to teach the children of African immigrants their home language, because many of these children grow up speaking only English.
And with the growth of international media, business and the internet, even in Africa - especially in cities - people can grow up not knowing the language of their forefathers. Many smaller languages may soon disappear. But does this matter?
http://news.bbc.co.uk/1/hi/world/africa/4123852.stm