Even though they give just one course a year, teachers are required to update its contents constantly, and one course is often taught by several teachers. Some courses, such as experimental methods in earthquake engineering offered by the civil engineering department, may have more instructors in the class than students.
雖然只教一門課，加州理工卻要求老師們不斷更換授課內容，也常有一門課每年由不同的老師換著教；更有些課，像今年土木系開的「地震工程實驗方法」，只有三、四個學生上，卻由四個老師合教。