Director of Preschool and 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.

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.

Administrative 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.


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 López

My name is María José López.

I studied Special Education at the Universidad Nacional de Costa Rica in Heredia.

My work experience began in 2013 as a bilingual preschool assistant at the Marian Baker School, an experience that ended in 2015.

Later in 2016 I was a bilingual preschool teacher at the Centro de Estimulación Temprana Amazonas where I stayed all that year.

Finally, since 2017 until the present time, I have been a primary teacher at Saint Gregory School, working in the area of Spanish and Social Studies in upper elementary.


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.


Edith Sánchez

In love with my profession and the joy that children radiate, I started working at the SGS in 2014. I’m dynamic, joyful, and caring which is what I like to transmit inside and outside of the classroom to children, parents, and peers.
I genuinely enjoy when my students fall in love with what I teach; my goal is to awaken their curiosity and desire to learn. I am 100% committed to taking care of each area of my students’ development and ensuring their healthy growth.
I live one day at a time, and I take advantage of every second in the best way possible.


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.


Dayana Redondo

Dayana Redondo passionate about education, art and volunteerism.


  • Bachelors Degree in English Teaching, graduated from Universidad Americana de Costa Rica.
  • Facilitator of Global Competences and Intercultural Education.
  • Manager of National and International visas.
  • Educational Coordinator management for 5 years at AFS Intercultural Programs foundation.

I firmly believe that experiencing local culture is essential to be an integrated citizen in the world, and it is through education that the acquisition of cultural identity and cultural competence is established, which allows conceiving people capable of positioning themselves onto the world, in front of others, in front of oneself and look at reality in a different way and think about the place that each one occupies in it.


Teacher and professional dancer of contemporary and urban dance.

  • Dedicated to this profession for 10 years.
  • I participated in national and international competitions and events.
  • I gave classes in different academies and institutions such as the Sagrado Corazón de Jesús school, the Victoria school, Sabik academy, rhythm fit academy, children’s museum foundation and participation as a dancer in national programs, events and commercials.


  • Volunteer and coordinator of projects with a population at social risk in Costa Rica and internationally.
  • Working in collaboration with the foundation will rain, OM international and AFS intercultural programs. In Costa Rica, Italy and Israel.
  • Experience in developing fundraising tasks and help in organizing events. Developing construction, education and protection projects.

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.


Jessica Varela Madrigal

My name is Jessica Varela Madrigal, I am 29 years old and I live in Curridabat. I have been a choreographer and dancer for approximately more than 12 years, I have been a dancer of hip hop, popular dance, and modern dances which have helped me develop my professional part in the field. I have participated in several Student Festivals (FEA) with different dance groups from Schools and Colleges nationwide, thus obtaining the first places in the last five years for the Student Arts Festivals in categories of National and International Folkloric Dances, I am currently a Costa Rican Inspirations dancer, with which the next February 2022 we will be traveling to Oman to represent our roots and customs, for me it is an honor to belong to this institution as an instructor not only of dance but also of values, idiosyncrasy, respect and love for our neighbors.

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.


Adolfo Medina

Graduated from the Universidad Autonoma de Centroamerica, I have worked as a preschool teacher in the field of physical education and early stimulation for 6 years, I have more than 10 years of experience in education, where I have been able to work as a teacher of primary, and high school , however, I firmly believe that work at an early age significantly marks the integral development of the infant and the different approaches and methodologies applied in an affective and responsible way provide a tool for personal growth for both the teacher and the child.

Artemania Teacher

Diana Rivera

My name is Diana Rivera Gómez, I am 33 years old, I have a degree in Special Education with an emphasis on learning disabilities, I also have knowledge in Arts and interior decoration. I consider myself a very creative person, since I love making crafts with all kinds of materials, textures and more.

Since I was little I always wanted to be an educator thanks to the great example I have from my mother, without a doubt it is the best job there is.

Currently I have experience in Industrial Arts, in Artemania classes, and Special Education, I love teaching and I love what I do.

My goal in this club is for the kids to bring out that artist inside them and realize how capable they are and how wonderful it is to create and have fun at the same time.

IT Teacher

Kevin Quesada Arias

I have a degree in Systems Engineering from the UAM. I am currently finishing my Master’s thesis in Education with a specialization in ICTs in Education, UNINI México and Universidad Europea del Atlántico. I also have a degree in Theology and I am currently pursuing my Bachelor’s Degree in Bible-Theology at Global University. I also serve as general co-patron at the Casa de Misericordia y Restauración church in Cipreses de Curridabat and as a mentor of theological courses and deputy director at the Virtual Theological Seminary.
I have been working at Saint Gregory for more than 8 years, where I work as an I.T. teacher for 1st to 11th grade, Programming and Chess club as well as TISG teacher for IB. Additionally, I am in charge of the Technology department of the institution and the administration of Cloud Campus.

I am a musician, I have been playing bass for 10 years. I love reading. Among my favorite books are: The Bible, John Maxwell, J.R.R. Tolkien and Covey. I collect scout badges (I was a receiving member for 11 years) and I am currently a prosecutor for group 210 of the Guides and Scouts Association of Costa Rica.

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.