I recently did this adult class and it was a huge hit. My students were really interested to learn about Nigeria and they definitely learnt a lot of new things.
The reason I decided to do a lesson on Nigeria is that I plan to do a few of these 'case studies' on different countries in Africa and later, Polynesia, too. My students in Korea sadly have many prejudices about Africa and African people. I want to break some stereotypes about Africa and show them successful African nations that are developed and are not anything like those Charity advertisements that are shown here. (and in many countries).
I am not Nigerian or from Africa, nor have I traveled there, so I rely on my husband and friends who are from different African nations to help me write some of these resources as well as my own research. So far, it's been really fun!