Meet Our Team

As an Executive Director, Diana leads day to day operations along with a team of passionate educators dedicated to helping students thrive. Diana worked in hospitality and sales for nearly two decades. With her experience and knowledge, she is committed to create personalized learning experiences that inspire students to excel.

Tiffany English is the Center Director of Sylvan Learning Center Katy/Houston. She believe with the proper support all students will be able to reach their academic goals with confidence.

Kirsten oversees the educational integrity of our programs, managing and training our team of tutors.  Kirsten brings a wealth of knowledge to Sylvan of Katy and experience in the training and management of personnel dedicated to customer service.

Erikah Bertolasio is certified teacher in Katy, Texas. She is a dedicated and passionate elementary educator with experience teaching math, science, reading, and core subjects across grades. She specializes in creating engaging, student-centered lessons and providing differentiated instruction to support diverse learners. With a strong background in tutoring and data-driven teaching, Erikah is committed to fostering a positive learning environment where every student can succeed.

Careen Longoria is a certified teacher in Katy, Texas.  She specializes in elementary and middle school math and reading, with over 20 years of experience in the education field.

Seungchul Shin is a certified teacher in Texas. He is an experienced Math Instructor with over three years of teaching middle and high school students. He specializes in simplifying complex mathematical concepts and delivering personalized, results-driven instruction that improves student performance. Known for his supportive and mentoring approach, Danny focuses on both academic success and student confidence, helping learners achieve strong outcomes in math.

Dianne Collins is a highly experienced and compassionate educator with decades of experience in elementary education. She specializes in creating structured, engaging learning environments and delivering differentiated instruction tailored to each student’s needs. With a strong background in tutoring, lesson planning, and student support, Dianne is dedicated to helping learners build confidence and achieve academic success.