scholarly journals Is exemplification the one and only way to describe that empty set is subset of any sets?

2021 ◽  
Vol 58 (1) ◽  
pp. 4767-4771
Author(s):  
Trisna Roy Pradipta Et al.
Keyword(s):  
High School Students ◽  
Set Theory ◽  
Junior High School ◽  
Mathematical Proof ◽  
Survey Result ◽  
Junior High School Students ◽  
School Students ◽  
Methods And Techniques ◽  
The One ◽  
The Right

Various methods and techniques in mathematical proof really need to be introduced to students. Since Studying set theory, there have been opportunities in teaching mathematical proof to students. Teacher are required to choose the right methods and techniques, and be able to develop the abilities of students. A survey was conducted with teachers, lecturers, and students of mathematics education regarding opinions and explanations of how to teach proof of one of the property in set theory. It is asked how to prove that an empty set is a subset of any set. Of the 96 respondents, 69 of them though that the most appropriate way was giving an example. Based on the survey result, there also other alternatives that are relevant even for junior high school students.   

A Survey of the Thickness of the Shoe Sole among Junior High School Students in Greater Jakarta for Shoe Correction in Seat Height-Popliteal Height Equation

Jurnal METRIS ◽  
2020 ◽  
Vol 21 (01) ◽  
pp. 27-30
Author(s):  
Yanto .
Keyword(s):  
High School ◽  
High School Students ◽  
Junior High School ◽  
Junior High ◽  
Survey Result ◽  
Junior High School Students ◽  
Test Results ◽  
School Students ◽  
Seat Height ◽  
And Gender

This paper aimed to present a survey result of the thickness of the shoe sole among junior high school students in Greater Jakarta, Indonesia. A number of 160 samples of the shoe wearing by junior high school students (85 boys and 65 girls) from Grade 7-Grade 9 was measured. The thickness of the sole of the shoe wearing by them were measured. The results were presented in mean and SD for each grade and gender. T-test results showed that no significant differences were found for thickness of the sole of the shoe wearing by boys and girls within the same grade. Anova test results also revealed that no significant differences were found for thickness of the sole of the shoe among boys in Grade 7-9 (F=0.54, p=0.58) and girls (F=1.06, p=0.35). Findings in this study revealed that a 20mm shoe correction, as often used by many researchers, which is added to the popliteal height to dimension the seat height (SH) is appropriate to be used for population under study. The results of this study provided sufficient justification for the use of a 2 cm shoe correction (SC) in addition to popliteal height when determining seat height of the chair.

scholarly journals STRATEGY FOR IMPLEMENTING CERTIFICATION DEVELOPMENT OF VOCATIONAL SCHOOL GRADUATES ACCORDING TO INPRES NO. 9/2016

JUDICIOUS ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 48-54
Author(s):  
Hamzah Robbani ◽  
Windi Megayanti ◽  
Nicky Rosadi
Keyword(s):  
High School Students ◽  
Development Strategy ◽  
Junior High School ◽  
Research Method ◽  
Qualitative Method ◽  
Junior High School Students ◽  
School Students ◽  
Vocational High Schools ◽  
Development Approach ◽  
The Right

The purpose of this study is to help determine the quality development strategy of SMK by following Presidential Instruction number 9 of 2016. This research method uses a qualitative method with a research and development approach. Data obtained using triangulation by conducting interviews with industries that are already active in absorbing direct labour from SMK graduates, then interviews from SMK management and observations at several SMK. The results of this study suggest that there are still many Vocational High Schools that have not gained awareness of Presidential Instruction No. 9/2016 so that SMKs do not know and are fully aware of the intent and purpose of the Presidential Instruction. The discussion of this study found the importance of an understanding program related to Presidential Instruction No. 9 of 2016. In addition to improving quality, junior high school students also have a better chance for graduates to get the right job.

scholarly journals Efforts to increase junior high school students’ confidence through assertive training

2016 ◽  
Vol 1 (1) ◽  
pp. 33
Author(s):  
Romia Hari Susanti
Keyword(s):  
High School ◽  
High School Students ◽  
Junior High School ◽  
Human Life ◽  
Junior High School Students ◽  
Research Subjects ◽  
School Students ◽  
The Right ◽  
Beliefs And Attitudes ◽  
Assertive Training

One of important aspects of personality in human life, especially teenagers is confidence. Counseling teachers can increase student confidence through assertive training. Through the training, students are expected to understand that everyone has the right to express their feelings, opinions, beliefs, and  attitudes to do a thing without a doubt, but do not hurt other people's feelings, so that confidence can be increased. This study aims to improve students' confidence through assertive training using classroom action research. Subjects in this study were students of SMP Brawijaya Smart School Malang who have low-confidence criteria.

Effects of Varying Explanations Given for a Provocation on Subsequent Hostility

1976 ◽  
Vol 38 (2) ◽  
pp. 659-669 ◽  
Author(s):  
Ann Frodi
Keyword(s):  
High School ◽  
High School Students ◽  
Junior High School ◽  
Poor Performance ◽  
Junior High School Students ◽  
Parallel Study ◽  
Control Groups ◽  
School Students ◽  
Sex Typing ◽  
The One

Groups of junior high school students were highly criticized by the experimenter for their supposedly poor performance on a creative task, and another person then gave varying explanations for the provocation. In addition to two control groups given no explanation, one group was told that E was sick and had problems (Sympathy condition), another group was told that he was a high achieving expert (Achiever condition), and a third group was told that he was habitually obnoxious (Habit condition). Three paper-and-pencil measures of hostility were employed as dependent measures. Results indicated that, when a provocation was said to be due to the instigator's illness or to his habitual ways, the victims rated themselves as feeling less hostility and anger, whereas when the explanation made reference to his achievement the subjects expressed more anger and hostility. In a parallel study, students rated the explanations on dimensions such as intentionality. The provocation was judged as the one least intentional in the Sympathy condition and the most intentional in the Achiever condition. Finally, some sex-typing effects were discussed.

DEVELOPING READING MATERIALS FOR JUNIOR HIGH SCHOOL STUDENTS BASED ON CONTENT AREA

2016 ◽  
Vol 5 (1) ◽  
Author(s):  
Anggita Kasanra Lubis And Rafika Dewi Nasution
Keyword(s):  
High School ◽  
High School Students ◽  
Junior High School ◽  
Content Area Reading ◽  
Junior High School Students ◽  
Content Area ◽  
English Teacher ◽  
School Students ◽  
First Semester ◽  
Reading Materials

Reading is the basic in learning every subject. The more understanding the text, the more information students can gain. However, the reading materials that the students use is not appropriate based on syllabus. Therefore, the reading materials should be developed to fulfil the syllabus and the students' needs also. Because English is included Content Area Reading, so the development of reading materials is based on content area which focus on strengthen the vocabularies, specifically the unfamiliar ones, by giving glossary and related pictures. The developed text is only focus in the first semester which is descriptive and recount text. The research was conducted at SMP Muhammadiyah 7 Medan. The data was taken from interviewing the English teacher and distributing questionnaires for 30 students in grade VIII-4. The data showed that students need materials which is related to their environment and constructed by familiar vocabularies. Based on the result of the study, conclusion and suggestion are directed to the English teacher who is teaching in that school to provide reading materials based on syllabus and students' needs regularly.

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