DC's Study Habits

1. Never in my life have I taken time after school to review a topic learned in class. If I've had any intentions to do so in the past I, most surely, haven't had time to do so. I do regret not having such study habits yet but, honestly, I haven't done much about it. The habit I am proud of having is homework, especially math homework. That is my idea of reviewing for math, instead of reading notes over and over again. It allows you to actually "experience" what you learn and understand the "why" to it better. When I do all my math homework I don't have to rush and worry for even half an hour the day before a test because I already understood the topic well.
2. I struggle a bit with the last topic we talked about, specifically the cosine and sine graphs but I don't have any specific question to ask about any topic at the moment. I imagine that if I where to do any past problems from this year I probably would have a question but not right now. I would like to know a bit better factorization and also: how can you solve for the square root of a given number (ex: 153)without using a calculator?