The article criticized by Purwaningrum and Muraki concerns the redesign of elementary school chairs to make them easier to transport and move after looking at them. They said chairs that can be easily moved are essential when changing classroom settings. It would encourage children to be involved in student learning when chairs are arranged to correspond to an activity (Earp, 2017). They observed that elementary classrooms in Indonesia have chairs that cannot be easily moved or transported by students. Chairs are constructed to the same size by all grade levels in elementary school. The chairs would be more difficult for younger batches of elementary students to transport than older batches. The design of the chairs, as stated by the researchers, is dangerous for young students to carry. The goal of the study was to observe how children carry chairs to design a chair that can be easily moved and transported. Furthermore, chairs should be designed in such a way that they are not only transported safely but also used for better productivity in the classroom. According to the University of Manitoba Faculty (n.d.), well-designed or comfortable chairs increase student productivity in the classroom by reducing discomfort. Furniture in classrooms, especially chairs, should be ergonomically designed to improve physical health during use. After long hours of sitting, our bones can degrade and create discomfort, which is why chairs should be ergonomically designed in a classroom where learning occurs while sitting. (Hoque et al., 2014). Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get Original Essay41 Indonesian and Japanese children aged 6 to 9 years were collected and their anthropometric measurements were recorded. The study used three types of chairs from Indonesian and Japanese elementary school classrooms with different sizes and weights. The children had the task of sitting on the chairs, carrying and moving the chairs for 3 meters. The time and an audiovisual recording were also recorded. The researchers determined the different parts of the chairs where children could carry them. The researchers looked at four methods of chair transportation and found no significant differences between them with respect to results on how they transported the chairs. They also observed 9 different types of waiting patterns and found that 2 patterns were used frequently. They found that Japanese chairs are safer to transport following holding patterns than Indonesian elementary school chairs. They said Indonesian chairs are thicker, heavier and have sharp edges making them unsuitable for use by children. According to Education Business (n.d.), properly designed chairs prevent long-term physical harm to students and help them concentrate on learning by eliminating the discomfort of sitting. Fair criticism The chosen topic is beneficial for elementary school children so that their learning environment does not prevent them from gathering new knowledge. Positive Points: Images, tables and figures are used so that the reader can better understand the article, be guided and not be confused about the methods used. The images of the chairs are used to help readers know which chairs are described in the paper and which parts of the chairs are labeled and used in the experiment. The methods by which children transport chairs are well.