Structure
Dickens gives an overall impression of the workhouse by presenting a series of smaller individual scenes (i.e. the scene in the room where the nurse is crying, in the room with the madwomen and in the room where the old men live).
Think about the scene you will be describing and the smaller scenes that make it up. For example, if you are describing the scene at a supermarket, you might describe the smaller scenes of the café, the produce section, the bakery, the tills, etc. List the smaller scenes that you will describe in detail (each will eventually have its own paragraph).
Hint 1: Lorem ipsum dolor sit amet, consectetur adipisicing elit. Modi est praesentium earum exercitationem, accusantium molestiae asperiores reiciendis aliquam doloribus, delectus, cumque odio omnis rem, aliquid et. Quisquam eius, incidunt ab.