LOW COST BUT INFORMATIONAL

This gave me a good review of the English language and a well preview of what struggles students and I, myself would encounter. It, however, also useful tips and activity plans to go about teaching and working with the struggles. I could go at my own pace and easily finished it within 2 weeks. It could be more consistent in the amount of test questions, however, I loved that all the tests reflected on the main concepts instead of just memorizing detailed facts.