First figure your test grade. Maximum test average is 15.0. Divide your test average by 15. For mid-semester grades, tests count 65% of your overall grades, so your points from tests are your test average divided by 15 and then multiplied by 65. For end-of-year grades, tests count 50% of your overall grades, so your points from tests are your test average divided by 15 and then multiplied by 50. Save this number, which is your total points from tests. Next figure your recitation exercise grade. Maximum is 10.00. Divide your recitation exercise average by 10 and then multiply by 4, since recitation exercises are 4.0% of your overall grade. Save this number, which is your total points from recitation exercises. Next figure your quiz grade. Maximum quiz average is 25.0. Divide your quiz average by 25 and then multiply by 12, since quizzes are 12% of your overall grade. Save this number, which is your total points from quizzes. Next figure your classwork grade. This is simple. Classwork is worth 6% of your overall grade, and your classwork average is out of 6.00. So simply save your classwork average, which is your total points from classwork. Next figure your homework grade. Your HW percentage is your total number of HW points divided by the number of HW points which are possible. This semester there are 1800 possible HW points for the entire semester. However, we figure the final HW percentage out of only 1620 HW points (90.0% of all possible HW points). Maximum HW percentage is 100%, i.e. more that 1620 HW points still counts as 100% HW percentage. Divide your total HW points by 1620, with a maximum of 1.00, then multiply by 10 since HW is 10% of your overall grade. Save this number, which is your total points from HW. Next figure your reading quiz grade. This is simple. Reading quizzes are worth 3% of your overall grade, and your RQ average is out of 3.00. So simply save your reading quiz average, which is your total points from reading quizzes. Finally, if this is an end-of-year calculation, figure your total points from the final exam. Your exam score is out of 40, and the final exam counts 15% of your overall grade, so divide your exam score by 40 then multiply by 15. Save this number, which is your total points from the final exam. Now add all your total points. For mid-semester, you are adding test points + recitation exercise points + quiz points + classwork points + homework points + reading quiz points. For end-of-year, your must add the exam points on to this total. Thanks. GBA Any student who earns 80% of all possible points can expect to receive an A of some type (A-, A, or A+); students who earn 65-80% of all possible points can expect to receive some type of B, and students who earn 50-65% of all possible points can expect to receive a C or C+. The letter grade cutoffs may be lower than those posted here, but are unlikely to be higher. At the end of the semester, see the Final Histogram on our Overall Grades page to see where the final plus-minus cutoffs lie. Thanks. GBA