The 21st century is characterized by rapid developments in information technology and automation, with many routine and repetitive jobs being replaced by machines, both production and computers. The world of his technical and vocational education curriculum in the 21st century is full of challenges to face. Technical education and vocational education must be able to create learning that is able to make students have the competencies needed by the world of work in the 21st century. Technological developments make changes in economic, social culture and including education. This article aims to examine the competencies needed in the 21st century and how effective learning is for this century. The research was conducted using the literature review method. In the 21st century, the world of work is increasingly complex, graduate students from technical education and vocational education must have learning skills, literacy skills and life skills. Skill competencies taught to students must focus on one particular area, because in the world of work each worker will only do one type of work. Learning in technical and vocational education is recommended to use the application of the project-based learning model. Various research results have found that this model is able to make students have the skills needed in this 21st century.
This paper is about the study of beneficial usage of AAC block production in Mother Industrial Co., Ltd (AAC and APC block factory). Autoclaved Aerated Concrete is one of such green materials. It not only uses the waste material like fly ash but also provides adequate strength to structures. The main aim of this paper is to show the beneficial usage of AAC block instead of the use of conventional brick. For that, the beneficial usage of AAC block is showed on many ways. The beneficial usage of AAC block shows the cost saving calculation of AAC block. As the next way, the beneficial usage of AAC block shows the weight saving calculation of AAC block. Quality control chart (x bar and R chart) use to prove the benefit of AAC blocks in checking the production process. The other way is the compressive strength calculation between conventional brick and AAC block to show the benefit of AAC block. Finally, the power consumption cost saving calculat block compared with conventional brick is to show the benefit of AAC block.
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