Classes working together

I am currently taking college writing, pub speaking, com tech, and sociology. College writing doesnt really play into any of the other classses but pub speaking. They work almost hand in hand. Many of the chapters I have read in both classes talk about lots of the same things. One big one is narrowing topics and making them small enough to fit into a speech or into an essay, and making sure not to ramble on away from the topic or thesis. We make outlines in both classes the same way. Thesis statements along with introduction and closing paragraphs are used almost daily in both classes as well. Its almost like im speeking or presenting an essay in one class and writitng an essay in another.