Writing the first half of a biography about Darwin and his theory of evolution

In a biography, we write using a formal tone in the third person; our writing is mostly, but not all, in the past tense. We use a range of cohesive devices to connect ideas together. We orally rehearse our sentences before we write. We use our notes from our plan to help us write (including the subject-specific vocabulary we planned to use). We give a title for the biography as a whole and subheadings for each paragraph. Each paragraph is indented.