Regarding from the 21 at Century Learning. There are 21 skills that learner need to know or learn in the 21st Century Learning. In addition, the ways to integrate students about "Critical thinking & problem solving" with "3R" (Reading , (W)Riting and (A)Rithmetics) that represent the core academic subjects, including Social studies, English, Science, Geography, Languages, Mathematics, and Arts. These "Collaborations , Teamwork & Leadership skill" resulted in the 21st Century Skills Maps that illustrate the intersection between core subjects and 21st Century Skills. This section includes examples of what skills might look like in core academic content with "Creativity & innovation" and practicing "Communications , information & media literacy" with others as well. According to "Cross-cultural understanding", Learners have to use