CNN.com reports that in response to rising fuel costs, some schools in the Midwest are shortening the school week to save funds. Next fall, the 1,029 public school students in Salmon, Idaho will experience a four-day school week, as Friday classes are cancelled. According to a study by the National School Boards Association, the number of stats with districts that sanction the shortened school week has at least doubled–nine states and approximately 100 districts have supported the move. In order to meet minimum hour requirements, many districts on a reduced schedule have extended the school day to make up the difference…