Director of Primary

Priscilla Alvarado

My name is Priscilla Alvarado, since I was a little girl, I knew my life was going to be surrounded by children who will fill my days with joy, knowledge and love. My higher education was at the University of Costa Rica, where I could develop two big passions for me which are Arts and Education. I obtained academic degrees in both of them. I first started working in education back in the year 1988 at Metodista School. In 1988, I began working for IEM and then in 2012, I began working at Saint Gregory. I worked first as a teacher and in 2013 as the Elementary Coordinator. During all these years in the administrative area, I have also been actively working as a teacher, giving support to students and teachers and also learning from them.

Saint Gregory has been part of my family since 1999 when my daughter began her academic life. All through my years of teaching, I have worked with children from all ages from preschool to high school, and I have had the opportunity of growing as an educator in both areas, artistic and academic.

Primary and High School Assistant

Laura Arrieta

My name is Laura Arrieta (Laurita), I am the Administrative Assistant for Elementary and High School. I have 21 years of experience, of which 16 years I have worked in educational centers. I am part of the first aid brigade of the institution. I have worked as an administrative assistant in boards of directors and as an executive secretary in important public and private companies in the country, however, working surrounded by children, young people and teachers is what really identifies me.

French Teacher

Maritza Quirós

Since I was fifteen I have followed my passion to teach as a catechist in my parish and I had no doubt that it would be forever. I studied French Teaching for primary and secondary at the University of Costa Rica and I have a degree in Educational Administration. In my 17 years of teaching experience I have collaborated in private schools, Ministries of Public Education and the French Alliance. I love music, dancing, singing, plants, social action and the joy of children. I have been part of the Saint Gregory family since 2002 and have worked as a preschool, primary and secondary French teacher, logistical support in the Ecological Blue Flag, first aid and primary and secondary catechesis.


Marcela Israelsky

I am Marcela Israelsky, a dynamic, resourceful teaching professional with a genuine interest in students’ cognitive and social growth. I am very passionate for the English language teaching. This leads me to motivate and inspire my students, creating an environment full of challenges and learning inside the classroom. I accomplished my higher education at Universidad de Costa Rica, Universidad Internacional de las Americas and Universidad Latina where I obtained a Master’s Degree in Education with a mention in teaching English as a second language. I have worked for more than 20 years as an English teacher in different schools among them Saint Anthony School. Angloamerican School, and Panamerican School. I have had the opportunity of teaching all levels from first to seventh grade, this has allowed me to understand the enormous responsibility and commitment I have as a teacher.


María José Chaves

I am a graduate in Education with an emphasis in Teaching English as a Foreign Language. During my years as a university student, I worked for North American companies, focused on digital marketing in customer service and in the area of copywriting and graphic design (my other passion).
Since 2016 I have worked at Saint Gregory School. They have been the best years of my professional life, I adore my kids and my work as a teacher. I look forward to continuing to innovate my lessons to help my students be excellent prolific creators of their own knowledge.


Katherine Araya

The most important aspects in my life are: God, my family and try to serve to other people. I am 31 years old. I studied at “Liceo Experimental Bilingüe José Figueres Ferrer” where I took university courses such as “Cálculo” and “Matemática 125”.

After that I studied Traslation and Interpretation at UCR. Later I studied journalism, radio, television and camarography. Now, I study at UNED a teaching’s degree. I teach at home since I was 12 years old and in working places I have 12 years of experience. I have worked in different zones: Liberia, Puntarenas, Orotina, San Marcos de Tarrazú and GAM. I have taught English as well as the four basic subjects. I was the principal in a high school for adults for three years. I love to teach. Nowadays, this is my sixth year in Saint Gregory School.


Ana Virginia Herrera

Graduated from the Universidad Internacional de las Americas in 2006 as a Licenciada in Bilingual Preschool Education has allowed me to exercise a wonderful profession where you learn from everyday situations. I have been able to work in the areas of ​​Preschool and Elementary as a teacher which has made me very proud to see the achievements of those students who have filled my classroom. I hope in God to continue to accomplish even more achievements and to be able to positively influence the lives of my students.


Ericka Rodriguez

I am Ericka Rodriguez Vargas. Graduated from the Universidad Experimental Pedagógica Libertador. Caracas Venezuela.

Started and completed my studies from pre-school to high school in Souderton, Pennsylvania. With more than 25 years of experience as a teacher, I have held positions as a professor in the areas of History, Geography, Social Studies, Science and English as a second language in the areas of phonetics, phonology and literature from school to university level. I worked as a university professor at the Master’s level for 11 years. I have had the opportunity to accumulate extensive international experience both professionally and personally. Collaborating as an international moderator of Rotary Club and contributing my knowledge in the area of Translation to private companies. I have worked at SGS since February 2015.


Prissilla Pacheco

My name is Prissilla Pacheco Quesada. In 2019, I got my bachelor’s degree in English Teaching at the Universidad de Costa Rica. When I was starting my career, I realized I always enjoyed helping the others; and at that moment, I knew the best way to keep helping people was through teaching.

I started working when I was 21 years old at the IPEA institute where I taught conversational English courses to students from 7 to 56 years old. At the same time, I was working for an English academy as a private tutor teaching either virtual or regular lessons. In the same year, 2019, I started my first experience in formal education. I taught subjects such as Spelling, World and Costa Rican History, and Literature to students from seventh to eleventh grade at Saint Edward High School.

Moreover, I have been helping and teaching students from different schools, and that has helped me to get experience with both primary and high school students. In 2021, I started this beautiful and exciting journey working at Saint Gregory School where I have the responsibility and privilege to educate my students with discipline and lots of love.


Ana Gabriela Rosabal

Hello. My name is Ana Gabriela Rosabal Rodríguez and I am 32 years old. I currently live in Mata de Plátano in San José. I studied to be an

Elementary Spanish teacher at the University of Costa Rica and the Universidad Estatal a Distancia and have been teaching for the past 11 years.

I enjoy ludic work with my students, creating spaces in which they can express themselves, where they can create, and enjoy different activities when learning. I believe in discipline, order, and perseverance as fundamental pillars for a significant learning environment. I love to teach my students that making a mistake can be a great opportunity for growth in which they can make the most out of it.

I am also mother to an eight year old boy so I understand the challenges and difficulties that can be presented when raising a child, that is why constant communication and support form home are so important. I feel greatly privileged to be part of Saint Gregory’s work team and be at your service.



Gabriel Murillo

Robotics and English teacher graduated with honors from the University of Costa Rica (UCR). With extensive experience in teaching English and robotics in the most prestigious institutions in the country. With high aptitude for information technology (IT). Certified by LEGO Education as We Do and EV3 Mindstorms robotics instructor. Co-coach of the First LEGO League nationals winning team 2019: City Shaper.


Jesica Varela

Student Support

Lorna Álvarez

Hello, my name is Lorna Alvarez Solano. I have a degree in Psychopedagogy, and I have more than 20 years of experience in education. I have worked both in public and private areas, and I have experience in all educational cycles. Since I was a child, I was inclined to be a teacher. Later, I met psychology and fell in love with it, and I had the great opportunity to get to psychopedagogy, which makes a fusion of both disciplines in addition to providing support to all human beings who are in the teaching and learning process; and for that reason, I specialized in this area. I have worked with children and teenagers, as well as with university students, in a classroom and in private tutoring. I consider myself a sensitive person, and I really like to support children and adolescents and make them see that the world has a wide range of opportunities waiting for them. This is my first year in this great institution, Saint Gregory School, where I have found a warm and loving place to which I am proud and honored to belong.

Sports Coordinator

Marcela Reyes

My name is Marcela Reyes Jiménez. I have a degree in Teaching with an emphasis in Physical Education graduated from the Universidad de Costa Rica and the UNED. I have 18 years of experience in teaching preschool, primary and secondary school, as well as a University professor at the Universidad Internacional de las Americas.

I have 18 years of experience as a coach of institutional cheerleading teams and national cheerleading teams during 4 processes, in which we participated in the Cheerleading World Cup in the United States. I started as a cheerleader from third grade all the way through the Ulatina and UCR university processes. As a coach, I started in 2003 at the Liceo Laboratorio, 15 years as a coach at the Methodist College which has been within the first 3 places in recent years and Grand Champion in 2016.

In addition, in 2019 I was a coach of Juegos Nacionales representing the Montes de Oca committee obtaining First place.

I am an internationally certified trainer with courses from the ICU (International Cheerleading Union).

I have had the opportunity to attend International Cheerleading Championships and Camps.

I am very excited and happy to be a part of the Saint Gregory Family as a Sports Coordinator, Cheer Coach, and High School and Online Teacher. And thus achieve great sports and wellness projects since sport is a great benefit for our students at a sports level, but also spiritually, mentally, teamwork and dicipline development.

Basketball Teacher

Juan Daniel Lobo

I am 27 years old, I am from Guadalupe de Cartago. I am a Physical Education Teacher. I am very passionate about dance, I am a CardioDance instructor and Popular Dance Teacher, I promote physical activity through games, sports and recreational activities.

Physical Education Teacher

Adolfo Centeno

I’m a college graduate in Physical Education and federated soccer coach. I have been working at SGS for 5 years now as the PE teacher for Preschool and Elementary school. I am also the soccer and badminton coach.
I get along with all my students and love to transmit my knowledge to them when playing sports.
I have experience in the minor league soccer, national champion in the LINAFA Tournament, and I have my own soccer academy.


Kristopher Moitland


Maríajose Navarro