The ACT is a puzzle. How do you solve it? You must first understand what is on the test. Fortunately, the ACT tells us.
These tests are the window into the mind of the ACT test makers. We want to know how the ACT thinks. Every time we miss a question, we have a HUGE opportunity to learn. When you are first familiarizing yourself with the ACT, work slowly and analyze all of your mistakes. Was your mistake careless? Were you tricked by the wording? Do you not understand what the question is about? If you can figure out the concept that the ACT is testing and why you missed it, you will be well on your way to mastering the ACT.