Brian Lisk


 Brian Lisk has been an educator for nineteen years both in the United States (Texas, South Carolina, & North Carolina) and abroad. He holds a Bachelor of Arts in Government from the University of South Carolina and a Master of Arts in Government from Villanova University.  He also holds a Graduate Certificate in International Scientific & Technical Communications / English from Bowling Green State University and is currently enrolled in the Graduate Certificate for School Leadership at Appalachian State University.  He is certified to teach Social Studies, Language Arts, English, and ESOL.  Brian spent the past five years as an Education Advisor to the Ministries of Education in both Kazakhstan and Malaysia where he carried out national school reform projects.  He began his teaching and leadership career as a pioneer in the creation of e-learning and was a trailblazer with the Early College High School movement through the Bill & Melinda Gates Foundation. 

Brian is a US citizen and enjoys travel, visiting most of the states and territories in the USA and has been to almost forty different countries on every continent.  His hobbies include reading, swimming, and outdoors activities.  Brian believes an appreciation of the liberal arts and sciences, western and non-western cultures, and global concerns contribute to the intellectual vitality of individuals.  He encourages this by providing a quality, meaningful education experience to each student with an underlying emphasis on citizenship and leadership development.





Sean Patrick Bowen 


Mr. Sean Patrick Bowen, our Social Studies and Language Arts teacher, is from the suburbs of Detroit, MI. A Michigan State University graduate with degrees in History, Sociology, Social Studies, plus Teacher Certification with a Specialization in Educational Technology and over ten years teaching experience. He has taught TEFL and TOFL Preparatory Courses in Seoul, South Korea. While teaching in Korea, Mr. Bowen traveled to Japan, China, and Thailand. His life, travels and educational experience make him a great conduit for imparting the school’s mission, “to develop and nurture well-adjusted lifelong learners, prepared to meet the challenges and responsibilities of life and to become successful global citizens and leaders in the 21st century.”   



Charles Koopman



Charles is an American who possesses a Master's Degree in History and IB certification along with twenty-two heart-felt years of teaching both in the U.S. and abroad. Charles loves most sports along with good conversation. He is fluent in Portuguese and Spanish and has written a book, a true "labor of love" dedicated to his father. His connection with Angola lies in his beautiful experiences in Northeast Brazil which is heavily influenced by Africa, and he is truly looking forward to this new adventure. He believes education builds productive, young citizens of the world who can articulate their thoughts, offering love and respect for others and themselves.


Samora Rugumamu


Samora Rugumamu, is the high school science teacher at ASA. He is from a small town in North Carolina and has been teaching science and math within the United States and internationally (China, Kuwait, Kazakhstan, Vietnam) since 2009. He graduated from North Carolina State University with a BS in Biological Sciences. He then enrolled in graduate school, where he worked at a cardiovascular disease research lab, while also doing some teaching and TA work.

Over the course of his teaching career, he has had the opportunity to teach a variety of classes: earth science, chemistry, general science, environmental science, combined science, algebra and geometry. He has an M.Ed in curriculum and instruction (with a minor in K-14 science education). He has thoroughly enjoyed his international teaching career so far, as it has opened his eyes to a multitude of new cultures, languages, and people. Outside of work, he enjoys running, playing basketball, swimming, and of course travelling. He hopes to continue on this path as long as he can, and looks forward to contributing to a fun and productive school year.   


Tony Rishchynski



Anthony (Tony) Rishchynski has been involved in international education for over a decade. He began his career as an English as Second Language instructor and worked in a variety of different global settings, from Latin America to the Middle East to Africa. Tony recently re-calibrated his focus to the Social Sciences with a focus on History. For the last few years he was based at the International School in Windhoek, Namibia where he taught IGCSE and IBDP History. Tony holds a B.A in Media Studies and Spanish Language/Literature from Queens University (Canada), a M.A in Political Science from Georgetown University (USA) and a Post Graduate Diploma in Education from the University of Glasgow (United Kingdom). A life-long explorer and traveler, Tony has spent time living and working on each continent (except Antarctica!). He is a firm believer that a fluency with our past can help the next generation navigate the complex terrain of the fragmented 21st century. To this end, he seeks to introduce young people to the world of politics, culture and the past in order to shape an informed, global citizenry ready to face the challenges of the real world. Outside of the classroom, his main interests are traveling to far-flung locations in Africa, improving his Portuguese and reading/watching the classics of 20th century film and literature.


 Carla Sabay



Carla Sabay is a certified Mathematics teacher and has been teaching for 16 years . She has completed the academic requirements for a degree leading to master of arts in education major in Mathematics and is currently pursuing a masters degree in Education. She is TESOL certified and has adopted CLIL (Content and Language Integrated Learning) when she was teaching in Asia. She has taught in the Philippines, Indonesia and Kazakhstan before she joined the American Schools of Angola last academic year.  During her stint overseas, Carla taught IGCSE, Singaporean, MYP/DP, American and integrated Mathematics as well as General Science. She also had a school leadership experience as a teacher coordinator while in Indonesia and worked in a team of international teachers in mentoring local teachers while in Kazakhstan. Carla is passionate about her craft; she believes in the holistic education of a child and guides them to develop their mathematical skills to promote enquiry and apply them to the real world in order to equip them with the 21st century skills essential to become innovative global citizens and leaders. Carla loves to spend her leisure time with her kids, going on road trips, gardening and community service.







Hassan Jose

Middle School and High School Math Learning Coach


Jessica Malambu

Middle School Learning Coach - Portuguese Co-Instructor   


Julio Malhete

Translator.  Portuguese Co-Instructor.  English Instructor for Local hired employees           


Domingos Sauaia

English Language Instructor for ASA Angolan Employees, Co-Instructor of Portuguese and Translator


Tony Barros

Bachelors of Science
Angolan History, Geography, and Culture Instructor