A lot of the information is useful. However, there often isn't enough detail or examples to really understand the concept or how to apply it in the classroom. Recently, on one of my quizzes I had to write 100 words about a concept, but the book itself only included 94 words on that topic. Overall, the quizzes basically just require regurgitating information from the textbook and do not require the student to think about how they can apply the techniques and concepts to their own teaching practice. The videos are almost always just text, so do not add anything to the book. Occasionally they are useful, and show examples of teaching techniques or language concepts. These videos are awesome, but the others are just frustrating. The other most frustrating thing about this course is that it doesn't seem as though anyone proof-read the book before publishing it to the website. The vast amount of spelling, grammar and punctuation errors is absolutely astounding, especially when the text is about teaching English grammar and punctuation! Ultimately this "course" is just a poorly written textbook. Without any structured activities to help process the information, or receiving any feedback, it is hard to call it a course at all.