What is Ralph tyler's model of curriculum?

Ralph Tyler's model of curriculum development includes four fundamental questions: what educational purposes should the school seek to attain, what educational experiences can be provided that are likely to attain these purposes, how can these educational experiences be effectively organized, and how can we determine whether these purposes are being attained? The model emphasizes setting clear objectives, designing relevant learning experiences, organizing coherent educational programs, and assessing outcomes to improve teaching and learning.