Saint Charles North (SCN) High School is a public four-year high school, located in St. Charles, Illinois, a western suburb of Chicago, Illinois, in the United States. It is part of Community Unit School District 303 which also includes Saint Charles East High School. History Originally, the main campus was built in 1995 by Hestrup & Associates as Wredling Middle School with a capacity of 1300; in 1999–2000 it was expanded and converted into St. Charles' second high school at a cost of $41,600,000. In spring 2001, a serious mold problem was discovered at St. Charles East, the district's other high school, and was determined to be the source of some student illnesses. East students received an extra two weeks of spring break while school board officials decided on the best recourse. For the rest of the 2000-2001 school year, East and North students both used the North campus, on a split schedule, East students in the morning and North students in the afternoon. After repairs, which totaled nearly $30 million, classes resumed their normal locations and schedules the following school year. Academics In 2006, Saint Charles North had an average composite ACT score of 22.6 and graduated 100% of its senior class. Saint Charles North has made Adequate Yearly Progress on the Prairie State Achievement Examination, a state test which is mandatory under the No Child Left Behind Act. St. Charles North High School offers the following Advanced Placement Program courses: Biology Calculus AB Calculus BC Chemistry Computer Science A English Language English Literature Environmental Science European History French Language German Language Latin Macroeconomics Music Theory Physics Psychology Spanish Language AP Seminar Spanish Literature Statistics Studio Art U.S. Government U.S. History Currently, St. Charles North is undergoing curriculum renewal and redesign in partnership with the Illinois Math and Science Academy along with Brown University. The average class size is 22.8. Fifty St. Charles North students were recently named AP Scholars for their exceptional performance on the AP tests administered in May 2006. In the 2007 National Merit Scholarship Program, St. Charles North was represented by two finalists: Alison J. Conn and Raymond H. Hsu. Hsu, the valedictorian for the Class of 2007, and Conn went on to win National Merit Scholarships. The following year, St. Charles North once again boasted two finalists (Patrick Eschenfeldt and Katharine Fragoso) and one winner (Eschenfeldt). Athletics Saint Charles North has 35 athletic teams,