In Forms IV and V, Greengates students follow a variety of balanced and demanding two-year courses leading to the International General Certificate of Secondary Education (IGCSE). This system is based on the British General Certificate of Secondary Education (GCSE) where students are examined in a broad range of subjects at the age of sixteen.
IGCSE examinations are tests of academic attainment and are taken in individual subjects. Currently, at Greengates there are around 20 subjects offered. Greengates requires that a student be successful in at least five IGCSEs to continue into the Sixth Form.
Students at the end of Form III select their IGCSE options and are helped to make their choices by their subject and form teachers, the Head of the Intermediate School and the IGCSE Coordinator. English Language, Spanish Language, Mathematics and Physical Education are compulsory subjects which all students take. Students then select five options from such areas of the curriculum as the Sciences, the Social Sciences and Creative Arts. The aim is that students take a broad range of subjects which will intellectually test and develop them as fully as possible
Students then follow a two-year course of study in Forms IV and V based on the IGCSE syllabi which are determined by UCLES. At the end of the two year period students are entered for the relevant examinations. These examinations are prepared and marked by UCLES, who subsequently issue the grades. These, therefore, are external public examinations.