IGCSE is an internationally recognised preparatory course for high school students, and it is recognised in all English-speaking countries and regions. Studying the IGCSE can effectively expand students' scope of knowledge and lay a sound foundation of subject knowledge and language for the subsequent A-Level studies. IGCSE focuses on developing students' logical thinking and English language skills relating to each subject. While the teaching of science is based on experiments, liberal arts focus more on developing critical thinking skills. If students desire to apply for Oxbridge and other similar Commonwealth universities, IGCSE results will be an important reference for their application.