The document discusses the subject-centered curriculum model proposed by Ralph Tyler in 1949. It focuses on organizing education around specific subject matter like math or science rather than the individual student. Key aspects include selecting content based on the logic of the subject, teaching students in a traditional classroom setting, emphasizing skills practice and intellectual development, and assessing students based on how much of the predetermined subject content they have learned. While it can promote intellectual growth, critics argue it is not student-centered and may lack engagement if it does not consider individual learning styles.