<p>I am not in college yet, so I cannot give you your direct answers, but only a general answer</p>
<p>Is it like the average of your grades over a given period ?
Yes it is, it stands for Grade Point Average</p>
<p>If so, of what grade (homework or tests or?)?</p>
<p>Your teacher adds up your homework, tests, quizzes, and/or other grades and averages them up. The average is your final grade, which is added into your GPA. Example: For Biology class: You get a 100 on a test, 90 on you quiz, and a 80 on your project [obviously you will have more tests and stuff in college] So your average grade in that class is 90%, which is an A-. </p>
<p>So, on your report card [final grades of all classes] it looks like this
Biology:A-
Math:A+
English:C+
Spanish:B+
Art:A+</p>
<p>GPA: Normally they have a number system, so:
A=4.0
A-: 3.7
B+: 3.5
B: 3.0
C+: 2.8</p>
<p>So your average GPA is: 3.6 [according to your grades above]</p>
<p>[This is made up by me, it is different depending on what school you are going to]</p>
<p>And why is it so important? Is it because it important for your admission in grad school? Yes your GPA is very very very important for grad school. They look at your GPA, rigor of classes, extra curriculars [extra things you do for fun/education outside of school like clubs or sports], honors or awards you received, internships, jobs, tests you have taken [like the mcat, which is for medical school], and your essays. </p>
<p>For more information you can pm me. Also, I suggest you should talk to your college counselor to find out about your classes, the grading system, and any other questions you may have.</p>
<p>Good luck!</p>