How to determine Exam IV and V scores for a particular grade

Determine what grade you want to earn in the class then calculate the total number of points your will need to earn out of the maximum possible of 900. See the table below.

Points are earned from your exams, your laboratories and your homework. To calculate what you will need to do on Exam IV and V to earn a particular grade, first choose the grade you want to earn in the class, the add up your first three exam scores and subtract from this number,

calc #1: points for your grade - sum of Exam I, II and III

Now determine your total number of points from homework (check your scores on the WEB), divide by the maximum possible then multiply by 200 and subtract from the points determined in the calc. #1.

calc #2: calc #1 - (sum of your HW scores/maximum possible)*200

Now determine your total number of points from laboratory (check your scores on the WEB), divide by the maximum possible then multiply by 200 and subtract from the points determined in the calc. #2.

calc #3: calc #2 - (sum of your LAB scores/maximum possible)*200

This number is the number of points you must earn on Exam IV and V for the particular grade.

This calculation you just performed assumed no homework scores or lab scores were dropped. You can recalculate your grades based on dropping the lowest homework and the two lowest laboratories to see what the difference is. The calculation becomes;

calc #1: points for your grade - sum of Exam I, II and III

Now determine your total number of points from the 13 highest homework scores (check your scores on the WEB), divide by 168 then multiply by 200 and subtract from the points determined in the calc. #1.

calc #2: calc #1 - (sum of your 13 highest HW scores/168)*200

Now determine your total number of points from your 9 highest laboratory scores (check your scores on the WEB), divide by 135 then multiply by 200 and subtract from the points determined in the calc. #2.

calc #3: calc #2 - (sum of your 9 highest LAB scores/135)*200

This number is the number of points you must earn on Exam IV and V for the particular grade.

Sample Calculation for a student from Planet X:

Exams

Homework

Laboratory

Based on this students performance we'll check the possiblity of earning a 'B' and a 'C' in the class. Lets do a 'C' first;

calc #1: 495 - 171 = 324

Now determine your total number of points from homework (check your scores on the WEB), divide by the maximum possible then multiply by 200 and subtract from the points determined in the calc. #1.

calc #2: 324 - (83/120)*200 = 324 - 138 = 186

Now determine your total number of points from laboratory (check your scores on the WEB), divide by the maximum possible then multiply by 200 and subtract from the points determined in the calc. #2.

calc #3: 186 - (120/135)*200 = 186 - 178 = 8

This student needs to earn 8 points on exam IV and exam V for a 'C' in the class.

Lets do a 'B' next;

calc #1: 675 - 171 = 504

Now determine your total number of points from homework (check your scores on the WEB), divide by the maximum possible then multiply by 200 and subtract from the points determined in the calc. #1.

calc #2: 504 - (83/120)*200 = 504 - 138 = 366

Now determine your total number of points from laboratory (check your scores on the WEB), divide by the maximum possible then multiply by 200 and subtract from the points determined in the calc. #2.

calc #3: 186 - (120/135)*200 = 366 - 178 = 188

This student needs to earn 188 points on exam IV and exam V for a 'B' in the class. Notice there are still 5 problem set score and 2 laboratory scores that are unknown, PLUS the lowest problem set and the two lowest laboratory scores are to be dropped.

We must still wait for the outstanding problem set and laboratory scores but at least we have an idea of what this student must do for a 'C' and a 'B' in the class. When all the grades are reported the student will be able to re-calculate their scores to see what they must do for the grade.

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