This is a great webise for teachers of all grades and subjects. It's quite well organized and provides you with resources, video, lectures, maps, etc. This website is from the East Asian Institute at Columbia University and is divided in four curriculum sections: geography, art, language arts and religion.
Their timeline tool is wonderful and allows you to narrow resources to a specific time period and/or country. Once you select your desired time period you can then see horizontal information about the dynastic, philosophical, cultural, political, etc. periods and their countries (China, Japan, Korea, Vietnam and SE Asia, and South Asia).
East Asia for Educators is a great resource, very well organized and quite likely teacher and student friendly. I think it's quite likely to be used by any teacher because of its vast resources and, organization and easy navigation.
http://afe.easia.columbia.edu/
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