Earticle

The propose of this study is to help students to have a concentration effectively with lights. The ultimate goal is to calculate effective blackboard colors and lights according to the convenience of students and analyze them scientifically using brain waves to fine ways to reflect them in reality. The main purpose was to come up with solutions of the inconvenience of the students’ due to the color of blackboard or the lighting in front of the blackboard. As a result of many experiments and many analyses, the most concentrated colored blackboard felt by students was green, followed by sky blue. The brightness of the most focused lighting felt by students was the light of the middle brightness (when 47cm away from the light source, 417Lux). The following was the brightest light which is 669Lux when 47 away from the light source.

The purpose of this study reveals the cause and relationships of lower self-esteem during the usage of social media services(SNS). We surveyed 184 young people in grades 1 through 3 in middle school. They were asked to fill out the survey asking about SNS addiction tendency and relation of lower self-esteem in the four different major categories of SNS posts. (Appearance, material value, human relationship and leisure life.) As a result, SNS posts related with leisure life and human relationship greatly affects other major categories of SNS posts which lowers youth’s self-esteem. Also, among appearance, material value, human relationship and leisure life, they chose leisure life as second for lowering youth’s self esteem the largest. Therefore, SNS posts about leisure life mostly makes youth see themselves negatively. Although it is difficult to completely stop SNS posts from lowering youth’s self esteem, it is found that by restricting SNS posts related with leisure life, it makes youth reduce to look themselves negatively as much as possible.

The purpose of this study is to analyze the students' characteristics of solving real-life problems using words and visual mediators used by students. We selected 6 high school sophomores and interviewed them and analyzed their study. As a result, the real-life problem varies in reality among students and the students' experience becomes the factor that determines practicality. In addition, the higher the students' ability to solve problems, the less influenced they were by words and visual mediators. Therefore, we can see the need to provide students with words or visual mediators that can be the main body of problem solving.

The purpose of this study is to help students selecting leisure activities with SNS(Social Network System) in k7~9 grade. Especially, students focused on SNS overly shows tendency to not spend on studies time and leisure time appropriately. These students are directly influenced by the disadvantages of SNS. This study investigates students’ leisure activities and status. And this study also suggests a design of mobile application to recommend suitable leisure activities considered with students’ money and time based on various information provided on SNS.