To organise content for your assignments, it’s useful to relate broad ideas and concepts to more specific types/parts. You can then identify the topic of each paragraph in your assignment.
Start by making an ideas map. You can then easily organise content into clear paragraphs.
The start of each paragraph (the topic sentence) should clearly tell the reader which idea you are focusing on because the reader can ‘see’ your ideas map, and understand how you have organised your assignment.
See grouping content into themes for more about organising content from readings into paragraphs.