Okay IGCSE FIRST LANGUAGE ENGLISH 0500/03 (paper 3) is mainly "
Directed Writing and Composition" where in section 1 you got Directed writing in which they will give you a situation/scenario/case, which you need to adapt it and thoroughly understand and answer a question on the same.
The questions might range from Letter Writing, Diary Writing, Dialogue, Speech, Report, Leaflet etc. (you cannot predict which one will possibly appear, once in some session students had to write a Tour guide or something, I dont exactly remember.)[25 marks]
Sections 2 is about Compositions, which a choice of 6 titled under Argumentative/discursive writing, Descriptive writing and Narrative writing. So you can choose any one suiting your type of writing.[25 marks] Only way to prepare yourself for this section(also the paper) would be solving each and every topic from the past paper and get it corrected by you teacher.
What exactly do you want to know? That would also help...
I've got a few notes too on how to write essays, summaries, style analysis/writer's effects etc. I need to search them I'll try posting them.