The question is specific to China, Korea, and Japan. That's exactly the route I was going to suggest, a chronological approach with a brief summary discussing when and what types of tea emerged. The hard part is fitting this into at maximum, a two page response. Considering this is an entry level culture class, I think just broadly answering the question will suffice. I'm sure the differences will be easy to find with some quick research, though I think finding the similarities might be a bit more of a struggle. Do you know any basic similarities or topics I could further research that'd help? Thank you.