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This project could not have been completed if it were not for the help of many dedicated people. Thanks to those who shared their ideas and materials on geography and early childhood—Mark Bockenhauer of the National Geographic Society, teachers Ann Hoehn, Judy Ludovise, and Ruth Anne Wilson-Jones, and Salvatore Natoli of the National Council for the Social Studies. Thanks to the same group for reviewing the final document and to Pat Bonner of the Consumer Information Center, Robert Burch and technical staff of Hammond Incorporated, and George Zech of the Duncan Oklahoma Schools.
Thanks to the National Mapping Division of the United States Geological Survey for becoming involved in the development of this document and making it available to a broader audience. In addition, thanks to Ann Chaparos for the cover design and help on the layout.
Also thanks to the staff of the Office of Educational Research and Improvement for helping make the draft into a booklet—Cynthia Dorfman, Kate Dorrell, Lance Ferederer, Mark Travaglini, Tim Burr, and Phil Carr.
Last but not least, thanks to students of University of Illinois at Urbana-Champaign for making this draft online version of HTML document — Sanjeev Chauhan, Bharat Chintapally Reddy, Marlon Daniels, Ayoola Folarin, Kevin Leuthold, Lay-Hong Lim and Dmitrii Rassokhin.
City maps, time zone map, and milege chart courtsey of Hammond Incorporated, Maplewood, NJ.