From what I understand, the context study differs from text response in that you are writing about your ideas relevant to the context (i.e. on a broader scale) whereas in a text response you are analysing the ideas within a novel. Examiners are looking for how well you can express
your thoughts on the context study. They are not looking for extensive textual knowledge (Although this may help you better express your ideas).
An examiner I talked to illustrated context in the form of a pyramid:
The Prompt
Your Ideas The Text
It basically means that a context piece needs to demonstrate how your ideas and the ideas presented in the text explore the element of your context presented in the prompt or stimulus. Keep in mind that the 'prompt' differs from a topic in that it is designed to stimulate thought rather than a constrained answer. This means it may come in the form of a picture.
A basic outline to writing an expository style context piece:
Topic sentence focuses on the context, not the text you are studying.
Evidence to support your contention can be drawn from extraneous resources. E.g, evidence can be taken from real-world issues, cultural figures, celebrities, media, other texts.... It should not be limited to just the text you are studying. (although it is wise not to ignore this as a valuable source of evidence). I'd imagine a strong expository essay provides a balance between thorough understanding of how the ideas of your context are presented in the text you are studying as well as how they are prevalent in reality.
Explanation into how your evidence supports your
ideas about the context study. I think in a text response, you want to link your evidence and ideas to the text you are studying. In context, you want to link your evidence to the broader ideas behind your context. Avoid restricting your explanations to just the text, try to relate them to the real world.
Link explaining how what you have written is relevant to the prompt/context.
are you allowed to use "we" etc....like be a bit more casual?
From what I've been told, Context writing is effectively free-writing. You can break most of the conventions that apply to text response such as avoiding personal pronouns. I think using 'We' is quite acceptable if you are using it to demonstrate how an element of your context study applies to humanity as a whole.