This lesson teaches students how to identify central ideas in texts and how authors develop those ideas through details. It begins with an aim and definitions, then provides a mini-lesson on central ideas explaining that they are the subject and information about the subject. The lesson models identifying two central ideas in a sample text - that names have power, and names influence likes and dislikes. It shows how the author introduces and supports these ideas with details. The lesson explains how analyzing central idea development and supporting details helps understand the author's purpose.