The Question and Answer section for The Curious Incident of the Dog in the Night-time is a great resource to ask questions, find answers, and discuss the novel.
Siobhan encourages Christopher to ‘include some descriptions of things…so that people could read them and make a picture in their own head’. Read Christopher’s description. What does Christopher write about? Is his writing effective? Is it unique?
What chapter is this referring to?
By"learn" do you mean how he grows as a character? I can't write your essay for you but I can give you some ideas.
Christopher likes prime numbers, dogs, and mysteries. He does not like shouting, being touched, or hitting.