Extracurricular activities include Academic Decathlon, newspaper, yearbook, student council, marching band, drill team, choir, orchestra, cheerleading, ROTC, and athletics, as well as service and special interest clubs. Many of these activities offer competition at the local, regional, and state levels. A comprehensive public high school including grades 9-12, Irving High School is one of three high schools in the Irving Independent School District . Seventy-six of the professional staff have master's degrees and five have their doctorates. Grading Policy Irving High School operates on an 18-week semester system.
Some classes meet for multiple periods.
Seniors are required to take a minimum of six of the eight periods offered. Numerical grades are given at the end of each six-week grading period. Course credit is awarded at the end of the year and is based on the final course average. An average for a full year course is determined by averaging the two semester grades. A weighted system of awarding grade points is used to reflect the differences in the difficulty of course level.