A curriculum rooted in the Chang legacy.

Dr. Chang Byoung-Hye's principle of parental consistency and infinite potential. Yeoheon Chang Hyeon-Kwang's 誠敬 (sincere reverence) and the Great Learning progression. Chang Taik-Sang's practical, service-oriented ethics. AI tutors weave these with the world's best Open Educational Resources into one path — completable in 175 days (intensive) or 365 days (balanced), starting any day.

修身

Phase 1

Foundations

Inner cultivation, literacy, numeracy, wonder, empirical inquiry (格物致知).

Resources · Khan Academy · OpenStax · CK-12 · Scratch

Milestone · Personal virtue portfolio

齊家

Phase 2

Family Harmony

Five Relations, communication, literature, family co-learning.

Resources · Project Gutenberg · CommonLit

Milestone · Family harmony charter

治國

Phase 3

Societal Leadership

STEM, humanities, arts, global citizenship, ethical innovation.

Resources · MIT OCW · CS50 · NASA STEM · edX · Smithsonian

Milestone · Impact proposal + Web3 reputation

平天下

Phase 4

Transcendence

Comparative wisdom, advanced philosophy, AI ethics — beyond all lineages.

Resources · MIT AI · Stanford Online · Library of Congress

Milestone · The learner's Chang Manifesto

Subject library

World-class learning, free at the source.

Every InterChang subject is built on verified, openly licensed materials from the world's best universities, libraries, and educational nonprofits. Your AI tutor sequences the path; human mentors validate mastery.

Mathematics

Y1 → Calculus

Science (Bio / Chem / Physics / Earth)

Y3 → Y13

Computer Science & AI

Y4 → University

History & Social Studies

Y3 → Y13

Literature & Writing

Y1 → Y13

Languages

Y3 → fluency

Arts, Music & Design

Y1 → Y13

Philosophy & Ethics

Y9 → University

Health, Wellbeing & Meditation

Daily, all ages

Licensing & attribution

All linked materials are used under their respective open licenses (CC-BY, CC-BY-SA, public domain, or original publisher terms). INTERCHANG adds sequencing, AI tutoring, human assessment, and mastery certification — never claiming authorship of source content.