PrepFactory is a wonderful free site for ACT and SAT prep. This interactive site uses a variety of educational videos, texts, games, and more to help students to prepare for their texts. Also, there are step-by-step instructions on how to solve/approach problems. PrepFactory is a great way to not only prepare for the ACT/SAT but help HS/MS in the subjects of Math, Vocabulary, and Grammar.
I highly recommend checking out PrepFactory by clicking here!!!