Uni-Prep

I found this program very easy to navigate. The self-pacing aspect was helpful because of my limited time so it took the pressure off of me to need to complete units by a certain date, I have worked as an ESL teacher in public schools in the U.S. for many years and found the curriculum to be quite comprehensive and yet, very much to the point. This certification is very affordable and, I believe, well worth the time. I think that this might be a little difficult for people who have no background knowledge on teaching English as a foreign language so may need to be supplemented for a total novice.