Practicing Communication, Collaboration, Critical Thinking and Creative Thinking Skills in Learning

21st century skills, which consist of communication,
collaboration, critical thinking and creative thinking skills are today's
global demands [16], [5]. Thus, these 21st Century Skills must be
developed in students [13], [9], [3], [19]. Collaboration and
communication skills are tools of life in carrying out their activities
both in the community, education, and work environment, while
critical and creative thinking skills are needed in solving problems
faced in real life. For this reason, the learning process must facilitate
the development of the four 21st century skills in students [5], [19]
Communication skills are important soft skills that must be
achieved by students in the learning process [9]. Soft skills are closely
related to the ability of students to communicate the results of their
observations or decisions taken. The results of students' thoughts
should be able to be clearly communicated by students, both in writing
and orally. By communicating what they think in the learning process,
they will better internalize what they understand
Collaboration skills are another skill that students need to
have [7], [13]. When students collaborate, it will involve the active
participation of students to achieve common goals with a high positive
dependence in solving academic and daily life problems. Through
collaboration, students who have low abilities will also be helped to
achieve the expected learning goals. [2], [6], [12]. For this reason, it is
very important to facilitate students to have collaboration skills.
Based on the results of research at Harvard University,