BC calculus

Student’s (11th grade) first and second semester grade in BC calculus is around 88%.

most of the grade drop was due to low scores in weekly quizzes.
even a good chapter/unit quiz (95%) is not able to bring up the semester grade percentage.

Need advice for the upcoming bc calculus midterm exam.
How to prepare for the exam to get more than 95%?
Please recommend good study guide for midterm.

Is there a good study guide for differential equations and application (bc calculus unit 8)?

I would recommend Patrick JMT’s Youtube videos. They’re obviously not a substitute for one-on-one tutoring or getting help directly from the teacher, but he explains calculus topics very clearly and concisely. Here’s the link if you’re interested: https://www.youtube.com/user/patrickJMT

I would recommend using Khan Academy and doing the AP Calc BC mission to get some practice problems and consistent practice each day. Also would recommend you get AP Calc BC prep book. Best of luck!