Writing a proposal for a sponsored activity such as a research project or a curriculum development program is a problem of persuasion.
Don't worry. I hate spam too. Spatial organization is when information in a passage is organized in order of space or location. If you were to describe the room in which you were sitting right now, you would be using spatial organization. Spatial organization may also be called descriptive writing and it is most frequently used when the narrator describes how something looks.
In addition to the three methods, there are several ways you can organize an informative essay that provides a definition. The most important thing is to present them in a logical order that makes sense, and there's not one method that's best in every case.