ISA offers a U.S.-accredited, English-language curriculum with an international dimension, comparable to that of many U.S. college/university preparatory programs. It also offers Advanced Placement (AP) courses in Spanish, English, Math, and Art. Students can earn university credits for these classes depending on their end-of-year exam scores.
The ISA curriculum is aligned with the American Common Core State State Standards Initiative for Mathematics and Language Arts, as well the Next Generation Science Standards, Social Studies and Fine Arts Standards. The development of curriculum is a continuous process, and ISA has been systematically mapping and revising its programs. The faculty is documenting curriculum updates online using an online curriculum management program called Atlas Rubicon. In addition, ISA has been reviewing its curriculum for vertical alignment and cross-level spiraling, both of which are linked to standards and assessment. In-service workshops are held each year for all ISA faculty, to assure continued professional development. Teachers also are sent to U.S. summer courses or to professional conferences as needed for updating or AP training.
The average class size is 15, with a maximum of 22 students. When a class size is less than 10, it may be combined with another level for specific subjects. The instructional day is from 7:50-2:50, with after-school academic support available as well as a variety of extracurricular activities and athletics.
Textbooks and other educational materials for all grades are shipped in from the U.S. for most subjects, except Dutch. An Aruban/Caribbean history and culture course is taught in the high school. Elementary and subject-area teachers incorporate field trips and curricular instruction related to local culture, history, and ecology to enhance appreciation of the host island.