TSI is a college readiness standard that must be met by each student who will attend a Texas public college or university. Students who have not met the TSI standard prior to college admission may be required to take developmental math, reading or writing classes and pay college tuition dollars for these non-college classes. Lake Travis ISD would like every LTHS senior who graduates to have met these standards prior to graduation. TSI can be met through scores on the SAT and ACT and also by meeting score standards on the TSI test. Seniors should contact his or her alpha counselor for additional information.