CompuServe Messages

Thanks for responding to my note on compuServe. I am currently getting ready to graduate and teach in the schools. I was wondering if there are any professional organizations for Earth Space Science teachers? I would like to find a source of information about the field on a national level. In my area of the country (Indiana) the field is just starting to become popular in the school systems. I am very interested in the overall condition of the field nationally. If you know of any organizations, I would appreciate you giving me a name and address. Thanks for the response!