Craetive Education is an educational non-profit organization that specializes in creating uniqiue filed emersion curriculum programs in which students and teachers paricipate in filed trips to exotoic locations. There are resources on this page on how to incorporate one of these trips into your classroom education or as a teacher you can volunteer as well
This website contains a huge amount of information for teachers ranging from news on policy issues, blogs, a job search feature, a section on technology in schools, and a curriculum/lesson plan section. I would highly recommend exploring all the different tabs at the top of the webpage as well as the subsections.