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Always read the assigned chapters and do the reading guides. They may be tedious, but they will help you a lot during the tests/quizzes! The answers for the reading guides can be found online but I would STRONGLY advise against directly copying the answers unless you are ABSOLUTELY stuck on a question. Homework is for your own benefit and if you don't read the chapters thoroughly you will fall behind in class. Also, use the textbook links to access practice quizzes because sometimes the quiz questions will be directly copied from there and it's free points :)