Based on cognitive theories, CET constantly provides the learning environment which improves 21st century thinking skills as well as English fluency. Teachers develop the interactive learning environment which improves systematic thinking skills, analytic thinking skills, inference skills, and creative approaches in the process of learning.
Students actively participate in the class by presenting what they learn or asking questions what they don’t know clearly. Teachers continuously encourage the students to explore the process of learning, inquiring various kinds of thinking questions. Students are challenged by the questions and try to think first before they answer.
Teachers actively cooperate with the students when they prepare the mid-term/ final exams at their school. Students are involved in learning environment, where students understand the key points of the test materials and are challenged to solve various questions, analyzing the intention of the questions and their own mistakes.

The high school students who prepare to enter the university can take this course. Students fully understand the structures of the sentences and apply the grammatical knowledge into the reading comprehension. Students are exposed in learning environment to reflect what they learn by presenting in the class and to analyze what they don’t fully understand by filling out self-analysis form.