High School Teachers
Martha Díaz Calle
I’m an experienced, determined and resourceful language educator. My teaching experience began as a French Teacher for the MEP and from then on I’ve worked non-stop as an English Teacher in different prestigious Costa Rican institutions as well as a Substitute Teacher for the Central Oahu District in Hawaii for several years. This opportunity gave me the chance to learn about various grade levels, school environments, and methodologies. I possess a Bachelor’s degree in French from the UCR and I have completed most of the courses to obtain the Master’s Degree in English as a Second Language at the same institution. In addition, I like to be up-to-date in my field and I’ve recently participated in workshops such as the use of technology in second language teaching at the University of Minnesota, PBL Learning, 21st Century Skills among others.
Martín Garita
I started my career in a DA institution before joining Saint Gregory School. I have been working here since 2015. It is a great institution where my heart now belongs, not only for its quality but also the kindness of its students.
Being a teacher at SGS is one of my major professional achievement. Throughout the years I have learned a lot and keep on learning every day.
Marcos López
I have a Bachelor’s Degree in Mathematics, also I´m tutor of Mathematical Costa Rican Olympics and MATEM teacher at the University of Costa Rica.
I consider myself a very organized, responsible and helpful person, I am very active and cheerful in my work as a teacher of mathematics. I love watching students learn and enjoy my subject and watch them grow intellectually. I am also a faithful lover of order and discipline as a tool to achieve the objectives set.
Susana Chacón
My name is Susana Chacón, I graduated in Spanish Philology from the UCR, I’ve been working at Saint Gregory for over 22 years since Mrs. Calderón opened the high school and invited me to be part of her project. There is nothing more than I enjoy than teaching and forming future generations. God has given me the privilege to guide them from seventh grade until they graduate. Being part of the Saint Gregory family has been a wonderful experience, that I could have never dreamed of.
Carlos Eduardo Alfaro
My name is Carlos Eduardo Alfaro, I’ve a degree in Mathematics (licensed degree) from the UCR. Also, I took part of an international congress to improve mathematical education in Mexico, Dominican Republic and Costa Rica. This is my fifth year of experience working in high school. Previously I participated in various projects in the UCR partaking in areas such as Talamanca, Nicoya and Sarapiquí.
Jacqueline Alvarado
My name is Jacqueline Alvarado. As part of my professional training, I have a Bachelor in Education with emphasis in the teaching of Social Studies and with a Degree in Educational Evaluation. In order to be up to date in the prevailing educational methodologies I have taken courses related to 21st Century Skills, PBL, Blending Learning, and Flipped Classroom among others. In addition, I am certified by ASOBITICO to teach the History course in the International Baccalaureate Program. Before becoming part of this great institution I have had the opportunity to work in other prestigious schools in the country.
I describe myself as an organized and dynamic person who likes challenges and enjoys the activities I am part of.
Gabriela Leiva
My name is Gabriela Leiva, your Biology professor and currently have nineteen years of experience in the field.
I’m pro active, communicative and have a great interest in the well being of my students as well as my coworkers. In Saint Gregory I teach the biology program from 9th to 11th grade and I’m the IB coordinator.
Miranda Di Silvestri
I was born in Caracas, Venezuela. I studied Preschool and Elementary in a British School in Caracas and for High School I attended a catholic school.
I am a very curious person and loved the experience in the high school laboratories, especially my Senior Year Sciences courses, so I decided to study Biology at the Universidad Central de Venezuela. Learning about natural processes and how nature functions was an amazing experience that still nowadays I enjoy. Once I graduated from the university I had the opportunity of a job offer as a High School Biology teacher in a bilingual school in Caracas and my career as an educator started. I have taught Science courses in Elementary and High School. In 2001 I learned about the International Baccalaureate Organization that offered rigorous and appealing programs for schools. Since then I worked in the implementation of the Diploma Program and the Middle Years Program in my former school.
As an educator in believe the best way of maintaining an adequately and nurturing learning environment is always preparing interesting classes taking in account the students interests and curiosity, respecting them and always present them with an interesting challenge.
I am looking forward to have a wonderful teaching and learning experience at Saint Gregory School.
Raquel Rivera
My name is Raquel Leandro and I am Philosophy graduate from the Universidad de Costa Rica. I have four years of experience working with all ages. This is my first year working in Saint Gregory School. I like to teach because it’s really rewarding to fill their minds with knowledge and reinforcing their abilities.
Agnes Roszkos
My name is Agnes Roszkos. I was born (June 21st ,1970) in Budapest Hungary. That is the where I grew up and finished Illyés Gyula University of Education in Szekszard (1991). Right after I graduated I had an opportunity to go to the States. I met my husband there, my children were born, and decided to open our own home daycare with the help of Morris County Children Services. They had provided me with constant resources and workshops for homeschooling.
In 2001 we had moved to Costa Rica where I had worked in Sojourn Academy as a Substitute Teacher for 4 years in in all levels from first grade through high school.
In 2008 I started working as a preschool teacher in SGS. Here I organized and led activities designed to promote physical, mental and social development, such as games, arts and crafts, music, and storytelling. Received an Honored Teacher award (2011).
In 2014, I was asked to teach in Elementary School here in SGS and currently I am a home room teacher for sixth grade where I teach all English subjects, including History.
I am a teacher with more than 25 years of varied teaching experiences who loves and enjoys working with children. I am open-minded, talented at incorporating a blend of traditional and progressive techniques and spice it with cultures from all over the world into daily activities; facilitating clear communication between children, parents and fellow staff members.