Students need to learn grammar. Seems like it is not taught anymore. Knowing grammar, being able to parse a sentence, knowing how to diagram a sentence, are extremely valuable in math and science, as well as in reading and writing. I have to help students with this all the time. It makes a difference between understanding, or not understanding; between passing and failing. Contact me if you want some math/SAT/ACT tutoring that is head and shoulders above the rest!