I haven’t taken the keystone exams because I took the PSSAs. Graduated 2010. From what I can remember…showing your work or writing in a way that shows your understanding is very important. So what I did was try to consider what the reviewer might be looking for in the response. It could be helpful to try and put yourself in the shoes of a teacher and see what they are looking for. And reading the instructions and looking for the words they use and mirroring it in your response can maybe help. Just my thoughts! Hope it helps 😌