Engineering (Compulsories, Physics, Chemistry, in some cases Computers/ICT).Medical group (Compulsories + Biology, Chemistry, Physics).Commerce group (Compulsories + Business, Economics, Commerce/Accounts/Both).You have the choice, but the most obvious choices are as follows:. Well, this part lies focus more on the school that you are studying/aiming to study in. For students who are yet to start their Grade 9 and are here to seek grade 9 subject choice help then you are in the right place. Start your preparations for IGCSE examinations by the help of this article which serves you with the preparation tips, tips to choose the best courses for your IGCSE exam. 2.4 Grade 9 English Language Study Tips.2.2 IGCSE Grade 9 Physics, Chemistry and Biology Study Tips.2.1 Grade 9 Maths and Additional Maths Study Tips.