Magoosh is an excellent platform to learn from the basics. I used the TOEFL and GRE programs. The videos are well-explained and the solutions of the exercises are super useful.

Magoosh is an excellent resource to prepare for standardized testing. You can review concepts, study flashcards, and flag unclear concepts for review. It is also available on an app so you can have quick 5-10 minute review sessions while waiting in line, etc. whenever you have a few spare minutes.

As a teacher, I use Magoosh's tools to supplement my instruction with international students. They love the playful nature of the videos.