The 21st century is a time where we need to be, because it is a challenge that must be faced. The world is changing and evolving rapidly. The world is interconnected easily. The school will be a key factor in building. And Thailand to develop and keep pace with the changes and development of the world. We must adapt to the changing and modern than ever before, such as 3R is to be read and written, and the calculator is another 4C is to analyze the communication, collaboration and idea. inventive Context related to the study of education in the 21st century Thailand.