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About
Back-to-School 26-27
About IST
Why IST?
Our History
2026-27 Calendar
Board of Trustees
Head of School
Senior Leadership
Faculty & Staff
Employment
Strategic Plan
Academics
Overview
IB Curriculum
Early Childhood School
Lower School
Middle School
Upper School
Admission
Overview
Tuition & Financial Aid
FAQs
Student Life
Athletics and Clubs
Student Support & Wellness
Trailblazer House System
School Traditions
Student Travel and Trips
Support IST
How to Support
The Trailblazer Fund
Giving Events
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Stay connected with the latest from The International School of Texas
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07.24.2026
The Value of an IB Diploma (Upper School)
The Value of an IB Diploma
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