Incheon International High School (IIHS) operates a seven-period day and offers a variety of subjects in many fields, and more than 70 units (or credits) a year:

• Korean Language
• English Language
• Social Studies/Science
• Liberal Arts
• Mathematics
• Physical Education
• Second Foreign Languages
• Major Subjects
• Art/Music
• Electives

Through the various elective subjects in the curriculum, IIHS students prepare for admission to domestic top universities along with overseas universities. The teaching and learning style in most of the subjects involves seminars, presentations, research, group discussions, etc., all of which equip students with the skills and knowledge needed for higher education institutions. Students must complete a total of 210 units and complete a variety of club activities to satisfy graduation requirements. The maximum course load for students per semester is 31 units.

IIHS encourages students to maximize their learning and take advantage of complete college-level courses. Students take can choose specialized classes such as AP World History, Essay Presentation, Creative Writing, AP Calculus, AP Macro/Microeconomics and more from grades 10 to 12. These courses are taught in English by qualified lecturers who have majored in those fields at overseas universities.

SPECIALIZED CLASSES

• Languages	Social Science
  English Literature	Economics
  Advanced English Ⅰ & Ⅱ	Laws & Politics
  Critical Reading and Writing	Ethics & Thoughts
  Critical Thinking and Argumentation	Study of Regional Area
  Creative Writing	Korean History
  Essay Presentation	International Law
  Advanced English Conversation	International Politics
  Advanced English Reading Ⅰ	International Economics
  Advanced English Writing	International Relations & Organizations
  Chinese / Japanese Ⅰ	Philosophy and Modern Society
  Chinese / Japanese Conversation	Cross-cultural Studes
  Chinese / Japanese Culture	Social Science Research Methodology

• Mathematics	Science
  Math	Integrated Science
  Math Ⅰ	Scientific Research and Experiment
  Math Ⅱ	Converging Science
  Mathematical Economics	Life & Science
  Mathematical Task Inquiry	Physics Ⅰ / Chemistry Ⅰ / Biology Ⅰ
  Probability & Statistics
  Advanced Placement (AP) Courses
  The following courses receive a weighted grade on student transcripts in recognition of the advanced nature of the coursework:

• Social Science	Mathematics
  AP Microeconomics	AP Calculus AB
  AP Macroeconomics	AP Calculus BC
  AP Human Geography	AP Statistics
  AP World History

• Science
  AP Chemistry Ⅰ & Ⅱ
  AP Physics Ⅰ
  AP Biology Ⅰ & Ⅱ