New and Returning Faculty United in Mission

“I have found my home, and I look forward to being part of the St. Mark’s community.” 

That’s how new second-grade teacher Kim Acosta described her first weeks at St. Mark’s. Acosta is one of 17 professionals who have joined St. Mark’s faculty and staff for the 2026-2027 school year, together representing a wide range of backgrounds and drawing from a rich well of academic and professional experience.  

“The reputation for excellence in educating the whole boy is one of the reasons I wanted to be part of the St. Mark’s community,” Acosta said. “It spoke volumes to me that so many faculty and staff find it difficult to retire from such an incredible institution. I also appreciate the fact that Marksmen contribute in meaningful ways within the Dallas community and prioritize making a difference in the lives of others.” 

Two moments from her first days on campus have impressed her most. 

“The first is how Mr. Dini always refers to faculty and staff. We are all his colleagues, and he sees himself in this educational role alongside us,” she said. “The second brought a tear to my eye. At the end of Convocation, the Class of 2027 put their arms around one another as they sang the alma mater. This was a beautiful reflection of the strong sense of brotherhood our Marksmen have and what makes this community so special.” 

That sense of community is echoed across this year’s new hires. Tim Ruiz, who has joined St. Mark’s as Director of Technology, points to the same reputation that drew Acosta in. 

“During my research and campus visit, it became evident that the faculty and staff’s impressive average tenure, along with the admissions rate, spoke volumes about the program’s excellence. My initial experience with the school and community has been incredibly positive. Everyone has been welcoming and eager to help me adapt to the culture of the School and to the state of Texas.” 

That sense of welcome took root even before the school year began, when new and returning faculty and staff came together for a series of pre-sessional meetings, spending time on topics that included the School’s philosophy on artificial intelligence, the past, present, and future of Character and Leadership education at St. Mark’s, and the new faculty Character and Leadership Fellows Program.

The AI discussion centered on how emerging technology intersects with the School’s mission and culture, with faculty and staff affirming that AI should never replace the human connection, mentoring, and in-person discourse at the heart of a St. Mark’s education. Conversation also touched on preserving academic integrity and each boy’s authentic voice, and on using AI thoughtfully as a secondary tool only after core skills are mastered. 

The Character and Leadership portion of the meetings took the form of a panel discussion. Panelists spoke to how the work of character and leadership sits at the center of everything the School does, working alongside academic excellence rather than competing with it, and how that sense of ownership extends across boys, families, faculty, and staff alike. Panelists described the community as a relay team carrying the baton forward, with today’s faculty and staff responsible for deepening and expanding that work before passing it on to the colleagues and generations of boys who will carry it next. 

That work is also taking a new form this year with the launch of the Fellows Program.

“This inaugural year of the Fellows Program brings faculty together for a year-long course of study, taking up the same work we ask of our boys,” said Dean Clayman, Head of Middle School. “We will deepen our own fluency with Character and Leadership education, cultivate our own habits and practices as leaders, and embed that understanding in how we teach. Ten faculty were invited to join this first cohort, and a new group will follow each year. We are hopeful the Fellows Program will strengthen our efforts with the boys and faculty of St. Mark’s while offering a model for others interested in this work.”
 
The sessions gave the community a shared starting point for the year ahead, grounded in the School’s mission of educating boys to become men of character. 

“Our pre-sessional meetings gave faculty and staff time to step back and think together about who we are and where we’re headed, from how artificial intelligence is shaping the classroom to the enduring work of building character and leadership in our students,” said Eugene McDermott Headmaster David W. Dini. “Those conversations reflect the heart of our mission: preparing boys not just academically, but as young men of integrity. As we begin a new year, I’m grateful for a faculty and staff who bring that same commitment to excellence to their work every day. I’m looking forward to what we’ll accomplish together on behalf of our students.” 
Back
    • Kim Acosta in her second-grade classroom.

    • David Dini discusses Character and Leadership education at St. Mark's.

    • Division Heads William Atkinson ’95, Marion Glorioso-Kirby, and Dean Clayman lead a discussion on artificial intelligence.

St. Mark’s School of Texas

10600 Preston Road
Dallas, Texas 75230
214-346-8000

About Us

St. Mark’s School of Texas is a private, nonsectarian college-preparatory boys’ day school for students in grades 1 through 12, located in Dallas, Texas. St. Mark’s aims to prepare young men to assume leadership and responsibility in a competitive and changing world.

St. Mark’s does not discriminate in the administration of its admission and education policies on the basis of race, color, religion, sexual orientation, or national or ethnic origin.