Data based on 2 reviews.
Make sure to take notes constantly, especially on the labs and activities; those are always important. You don't need to do the readings, they're not on the test- save yourself the trouble. Exams are relatively easy if you study the labs and notes well enough; use her posted study guides, but if something seems too obscure to be relevant, it's probably fine to skip. Only stuff done in class is on the exam.