She Blinded Me With Science

In order to calculate your semester grade, you will need three things:

1) Your first quarter letter grade.
2) Your second quarter letter grade.
3) Your midterm letter grade.

Then, you will need to convert each letter into a number, using the conversion below:
A = 4
B = 3
C = 2
D = 1
F = 0

From that, plug those numbers in to this formula below:
([first quarter number]*.375) + ([second quarter number]*0.375) + ([midterm number]*0.25) = [number representing your semester grade]

Finally, using the A = 4, etc., conversion above, convert that final number back into a letter. Anything .5 or higher rounds up to the next nearest whole number.