Grading System

  • 90-100 = A
  • 80-89 = B
  • 75-79 = C
  • 70-74 = D
  • Below 70 = F
Students receive credit for a grade of 70 or higher.

Ranking System

All high school courses are college preparatory and have a weight of 1.0. Pre-Advanced Placement courses in Grades 9 & 10 have a weight of 1.05. Advanced Placement and Dual Enrollment courses in Grades 11 & 12 have a weight of 1.10.

To calculate the grade point average used for class ranking, multiply each grade by the weight factor (ex. 79 x 1.10 = 86.9) and then average the grades (ex. 86.9 + 75.6 + 84.7 + 84.0 + 90 + 92.4 = 513.6 / 6 = 85.6).


Content maintained by STISD's Public Relations & Marketing Specialist Andi Atkinson
1.800.21STUDY or (956) 565.2454 — 100 Med High Dr. / Mercedes, TX 78570