Leonardo da Vinci did so many different kinds of things during his life, your greatest challenge may be limiting your essay to only five paragraphs. Before you start writing, you need to do your research about his life and accomplishments and pick what you consider to be his three most important or noteworthy areas of involvement. Those will be the activities your essay will present.
The first paragraph of your essay will introduce your subject, Leonardo, and give a preview of the information about him contained in your paper. You might want to give some basic biographical information, such as birth and death dates and locations, family dynamics, and educational background. You should also mention the three activities you are going to develop in more detail in the following paragraphs.
Paragraphs two, three, and four will each provide more details about one specific field of endeavor for which Leonardo is recognized. If you want to highlight his work as a painter, for example, you could discuss the significance of some of his paintings, the mediums he used, the challenges he faced in creating his artwork, and so forth.
Your final paragraph is your summary. Review the accomplishments you have presented in the body of your essay and present your conclusion regarding the man and his work.