为更高级别的课程（尤其是AS / A级别）奠定基础。这些科目通常在11年级学习。有些科目将在12年级上课。在某些IGCSE科目中，有两个课程级别-核心课程和扩展课程。扩展课程提供了更具挑战性的课程。提供以下等级的扩展课程：A，A，B，C，D，E，核心课程：C，D，E，F，G，H，A – G等级被认为是最低成绩针对每个学科的学习目标。
Cambridge International is administered by the University of Cambridge Local Examinations Syndicate (UCLES). UCLES is one of the world's leading examining bodies. Established in 1863 it provides examination services in over 160 countries around the world. Although CAIE is based in the United Kingdom, and the structure of the Cambridge International awards is the same as the UK awards, its courses are designed for the international community.<br>Cambridge offers three general secondary qualifications: <br>International General Certificate of Secondary Education (IGCSE) - usually taken in Year 11<br>Advanced Subsidiary Level (AS) - usually taken in Year 12 <br>Advanced Level (A Level) - usually taken in Year 13