Encouraging and Challenging

I am a native English speaker but also Nigerian, meaning I have an accent and a somewhat different vocabulary than Canadians or Americans. However, I am interested in teaching English to others who speak it as a second language. At first, I thought it would be 'easy' because I grew up speaking English and went through all my education with the English language. Going through the course was encouraging as I could affirm my fluency but also challenging in that certain things I take for granted would be essential to teaching English as a second language. It took me a while but I like the available timeframe to complete the course.