Columbia Gorge Community College is now taking registrations for its fourth annual Math Day on May 16 for middle and high school classes. CGCC’s Tom Penberthy it’s a field trip event in which students participate in various sessions that apply math in practical and fun ways. This year’s sessions will include the Mathematical Vibrations of Music, taxi cab math, and a perennial favorite reaching into the health care field, “How Not To Kill Your Patients.” To sign a math class up, teachers can go to cgcc.edu.