Parent Portal

Secondary (12 – 18 Years)

"Adolescence is the time when the child enters the state of manhood and becomes a member of society... [It] is a state of expectation, a tendency towards creative work and a need for the strengthening of self-confidence...[and] achieving economic independence."

- Maria Montessori -

The Montessori Secondary program for students ages 12 – 18 years (US Grades 7 – 12), is a dynamic learning environment where adolescents perform meaningful work that simulates experiences in the adult world.

Students pursue projects that serve their interests and the community, allowing them to deepen their sense of self as they identify strengths, passions and unique capacities.

Projects require systems thinking and the development of future ready skills, positioning the adolescent as a producer of knowledge and an agent of change.

In addition, students will have the option to pursue Advanced Placement courses and examinations in High School.


Humanities is a broad interdisciplinary subject area. There is a focus on “The Study of the History of Humanity”, and through projects, we explore different time periods, the lives of people, scientific discoveries, and the relation of humans to the environment. English Language Arts is firmly integrated into every learning experience. Other disciplines that are often tied into our topics include Geography, Economics, Anthropology, Psychology, Philosophy, Political Science, and Civics.


Science provides students with an understanding of important science concepts, processes, and ideas. Through project based learning, students develop higher order thinking skills and the ability to reflect on and solve real world problems and apply scientific principles. Through their projects students cover the major areas of content knowledge in Physics, Chemistry and Biology and skills in the Second ary Science curriculum, practicing inquiring, designing, processing, evaluating, and reflecting on the impacts of Science.

Integrated DT & ICT

The Integrated DT & ICT program brings our students the forefront experiences in technology covering information and computing technology, design technology, coding, automation and robotics through a Project Based Learning approach. This program is designed and delivered by RoboX, a team of technology educators from Chulalongkorn University who are renowned in the field of robotics in Thailand.

Micro Economy

In Micro Economy students design and operate their own business to gain practical experience. They also learn about Economics, Business and Entrepreneurship. Students explore the elements of a business organization including human resources, marketing, operations and finance. They apply their theoretical knowledge in launching and operating their own business.

Languages (English, Chinese, Thai)

Multilingualism is a cornerstone of our Montessori program. In addition to the English language, students continue to develop competency in the Chinese and Thai languages throughout the Secondary program. Language lessons are customized to the abilities of the learner so that they can apply these languages practically along with being able to pursue advanced language studies in the IB Diploma Program.


English Language Arts is a subject of its own and is also integrated into all areas of study, with projects for various subjects incorporating language and writing, as well as practical components and opportunities for expression. Through literature studies, students develop culturally, emotionally, intellectually, socially, and spiritually, while practicing technical language conventions and practicing the key components of speaking, writing, reading and listening.


The Chinese language program supports students who are new to the language as well as students who have an advanced level of Chinese language abilities through a customized approach. The program focuses on enablin g students to use Chinese practically in their daily life through developing listening, speaking, reading, and writing skills. Different aspects of Chinese culture, literature, history, and society will be introduced through group activities, multimedia p rograms, and research projects throughout the course.


The Thai language program supports students who are new to the language as well as native language speakers through a customized approach. The program focuses on enabling students to use Thai practically in their daily life through developing listening, speaking, reading, and writing skills. Different aspects of the Thai culture, literature, history and society will be introduced through group activities, multimedia programs, and research projects throughout the course. The program for native language speakers draws from the Thai national curriculum along with an inquiry based approach.


Our Mathematics program is designed for students to develop a strong sense of mathematical confidence, competence, engagement, and lifelong learning. We provide a carefully prepared learning environment that blends Montessori pedagogy with current national standards and ensures individualized pace and rigor for each and every student. Students experience topics such as Algebra, Geometry, Statistics and later on pursue more advanced work, such as Calculus.


The secondary music program emphasizes practical performance skills and creative compositional skills. With the modern band component, students have the opportunity to grow and perform on modern band instruments using student relatable songs. With the composition component, students utilize music technology as a platform for their creative musical endeavors. Combined, students acquire the tools and skills to become global musicians.

Visual Arts

The Visual Arts program nurtures art appreciation by enabling students to understand and explore art theory and history, deve lop their artistic skills, and further their creative thinking skills. Through creative exploration, s tudents gain 21st century learning skills balanced with social emotional learning that enable them to express themselves. Students engage in projects that are designed to integrate with ot her subject areas such as creating booklets to be gifted to the audi ence for the school performance, creating non traditional self portraits, abstract sculptures, etc.

Expressive Arts

Expressive Arts focuses on four elements: Creating, Performing, Presenting, and Producing components. The students explore c omponents of creativity, perform ance, scriptwriting, cinematography, directing, producing, editing, and more. The program aims at developing skills that can be applied to a professional industry, personal development, business, or various forms of creative expression.

Culinary Arts

The course covers the theory and practice of Culinary Arts. Students learn about culinary background, food preparation, cookery skills, knife skills, kitchen knowledge, menu creation, cost control, hygiene, and safety in the workplace. The skills learned here is put to use with students working as a team in the kitchen with the goal of serving the community.

Physical Education

The goal of our Physical Education Curriculum is to introduce students to physical and personal wellness activities and athletic skills as a means of self expression and with the possibility of developing an active lifestyle, lifelong interests, and commitment to personal health and well being. Specialist instructors join our staff in instructing physical activities and sports. Organized sports include soccer, baske tball , badminton, volleyball, table tennis, gymnastics, rugby, swimming.

Montessori Secondary Projects

MABIS students engage in the philosophy of Sufficiency Economy through projects relevant to Thailand and those having a global impact. With an emphasis on innovation, sustainable development and social entrepre neurship, students explore social and natural systems and identify areas where they might contribute their skill sets for the betterment of the school and the community.

Montessori Secondary Space