We use cookies to improve your online experience. To learn more please refer to ourPersonal Information Collection Statement.

Sorry but this form will not work without cookies enabled. Please adjust your browser settings to enable cookies to continue. For more information on how to do this please see ourPersonal Information Collection Statement.

  • Preparing students to excel

    ISR shapes citizens of the world who are prepared to become socially responsible and successful.

    San Agustín Campus

  • Our People

    We benefit from talented, experienced and world class faculty and staff.


  • Prepared for Success

    Students are part of a global learning community that includes peers and teachers from around the world.

    Girl student writing

  • Students are encouraged to explore their talents

    ISR offers a wide range of services and extracurricular activities.

    Students playing chess

  • Welcome to San Roberto

    We are a values-centered community that happily welcomes people from every culture, belief, and religion.

    Students with laptop

  • News and Events

    Keep updated about our news and events and follow us on Social Media.

    Student with laptop

Hortensia Prieto

Hortensia Prieto

General Director

Hortensia Prieto is ISR’s General Director. She has worked at ISR since 1991, where she has served as Curriculum Coordinator, Academic Coordinator, Principal, Superintendent Assistant, and General Director.

Prior to joining ISR, she worked at ITESM as a college and high school teacher, and teacher trainer. She holds a BBA in Human Resources Management, a Master in Business Administrations, and a Master in Education from ITESM, as well as a Master in International Education from Framingham State University.

She has actively participated in AdvancEd since 2001. She has been involved in social responsibility projects since elementary school, and now married, with three children, she participates with her family in projects of this kind. She is passionate about education of children and teens.