Marking Period Grades
Individual marking period grades are calculated by averaging formative and summative grades separately.
Example:
Summative Average= 85+70+100= 255/3 = 85
Formative Average= 100+95+95+100+100+0+0+85+0= 575/9 = 63.88
A Regular or Honors Course is 60% Summative and 40% Formative. Therefore:
Summative Average = 85 x .6 = 51
Formative Average = 63.88 x .4 = 25.55
Add those totals = 51+25.55 = 76.55
An AP Class is 70% Summative and 30% Formative. Therefore it is calculated a little differently:
Summative Average = 85 x .7 = 59.5
Formative Average = 63.88 x .3 = 19.16
Add those totals = 59.5+19.16 = 78.66
Final Course Grades
Course Grades are calculated by converting each marking period grade to a number (quality points) between 0-4 based on this scale:
A = 4
A- = 3.67
B+ = 3.33
B = 3
B- = 2.67
C+ = 2.33
C = 2
C- = 1.67
D+ = 1.33
D = 1
F = 0
Example:
A Student earns the following marking period grades: B, A, D+, C-.
We convert each grade to it corresponding number (quality points).
B=3
A=4
D=1.33
C-=1.67
Adding them together: 3+4+1.33+1.67 = 10 divided by the 4 marking periods: 10/4 = 2.5
We then determine the final letter grade based on this scale:
3.75-4.00 = A
3.48-3.74 = A-
3.20-3.47 = B+
2.80-3.19 = B
2.50-2.79 = B-
2.20-2.49 = C+
1.80-2.19 = C
1.50-1.79 = C-
1.20-1.49 = D+
0.60-1.19 = D
0.00-0.59 = F
In the above scenario the students grade was a 2.5 which calculates to a B-