So I was looking for some way to talk about China and the rest of East Asia when I begin teaching Early American History this year, and it isn't quite as easy as I thought. But I found a basic website that I could use to help supplement my textbook information: http://teachingresources.atlas.illinois.edu/chinatrade/introduction04.html
This website is not flashy, or super kid-friendly in terms of keeping them interested with things to click on, but it does have information on it that I feel would be beneficial to teachers. Trade is a HUGE part of any history lesson as 90% of history talks about the effects of trade, and how important trade is to our current lives. This website offers a teacher background page with information that we as educators need to know before teaching the lessons - it looks similar to what my TE offers but is a bit more concise and easier to read I think. It also offers a few resources that you can use in addition to your textbook such as books that can offer even more in depth information (example: To The Farthest Gulf: The Story of the American China Trade). As a teacher, I am always looking for more resources that I can use to be more detailed in my lessons, and of course to selfishly further my own knowledge. The website also offers a sort of unit plan that can help you plan out how you would like to approach the topic. I can see a lot of different ways to use the information on this website, and believe that high school teachers could benefit as well as the resources are meant mostly for middle & high school levels.