Not too easy. Not too difficult.
repetition. you can not study one day and pick up the book 2 days later, you must study everyday
Learning that what is on one side of the equal sign, equates and do not forget to change the sign from positive to negative when you move from one side of the equal sign to the other.
Hours per week:
Advice for students:
Study everyday. Do not take any day off, even if you have no assignment or homework