Three words. Do. Your. Homework. You gotta do your homework and study hard in this class. Turn off that phone, turn off any distractions, and you got to commit and try your best. Try to do your homework the day given and try not to procrastinate because finishing your homework early will give you an advantage. This is a hard course but just do your best and you should be fine. I think Mr. Grewal's a good teacher. He's strict but that's how you learn. I can tell that he does his best as a teacher and cares about his class. Remember, do your homework and make sure to review the things that were taught, if not then you won't do well on tests. Trust me, I've been through that lol. Speaking of tests, he also assigns quizzes a few days before a test that aren't for marks but to test your knowledge and to see where you are at. Another thing, make sure you remember the formulas and really understand it and make sure you know what to do when you are given an equation. I call this math IQ, it's like basketball IQ or hockey IQ except it's in math. It's like when you are given an equation you have a sense of what to do. This IQ is important and is learned through practice questions in your homework. Keep on practicing and completing your homework. When you start the course you have to hit the ground running. Mr. Grewal is a strict but good teacher and expects you to try your best. Good luck!