Decatur High School offers Advance Placement courses in English, Math, Science, and Social Studies. Click on AP Course Listing to view a full list and teachers. The application process requires a teacher recommendation and interviews. Once accepted, students must committ to the course. The application process begins in December each year for the next year and the deadline for application is the last week in January. Students should follow the AP Student Checklist found in the download section and all applications are due to Couseling office.