In 2013, Green Key Education Center was set up by several teachers equipped with 10 years of experience in preschool education, dedicated to facilitating children to develop their interest in independent learning, capacity of independent thinking, as well as shape their positive and tenacious spirit after school. The language of instruction in Green Key Education Center is standard Mandarin. Following small-size class pattern, teachers are persistent in creating a natural and joyful learning atmosphere for children, guiding children to seek knowledge via such cheerful manners as Q&A, discussion, tests, etc., whereby children can endlessly strengthen their curiosity driven by sense of achievement and joys derived from independent knowledge acquisition, and then persist in developing their own interest in learning.