The importance of C lies in the fact that competition for human resources is becoming increasingly fierce, one of which is the mastery of various competencies. There are four competencies that need to be optimized in education to compete with other countries, namely: 1. Critical thinking and categorization of 21st century skills into categories, namely, way of thinking, way of living. jobs, tools for the job, and skills for living in the world Griffin, McGaw & Care, 2012. The Path. 12 2021 - Approved: 27. 12 2021 - Published: Blended learning as a learning model by Dya Puspitarini. Yogyakarta High School, Yogyakarta, Special Region. Below are the PAK-21 21st Century training activities that I have provided in graphic form, namely high resolution 4490 PNG size images. This is suitable and can be completed as part of PdPc training and youth activities. The image below also shows an IMPLEMENTATION ANALYSIS OF AN INDEPENDENT STUDY PROGRAM FOR TEACHING PREPARATION. Didactics PGSD STKIP Scientific Journal, 2 1348-1363. DOI: 10.36989 Didaktik.v8i2.392. Survived two decades and is known as the age of knowledge as explained by the 4C Muhadith students of 2013, namely communication, collaboration, critical thinking. C must own and master every student to cope with challenges. Regarding S. Sugiarthi and Ari 1. Critical thinking. Critical thinking. The emphasis of C:Century training is to develop critical, creative, communication and collaboration skills in preparation for changes in the world of work. Contextual learning: Century learning strives to present real-life situations to ensure understanding. The purpose of this study is to provide an overview or overview of research in physics learning based on 21st century skills. Communication, collaboration, critical thinking and problems. It's about the 4Cs: communication, collaboration, critical thinking and problem solving, and creativity and innovation. Skills: 4Cs Students Must Have Page all - Kompasiana.com This is why the education system must be able to support and encourage students to master these competencies. Below we will discuss more about each C that you need to master. What is communication? Communication is an important pillar?,