scholarly journals Epistemological Obstacles on The Quadratic Inequality

2020 ◽  
Vol 11 (2) ◽  
pp. 317-330
Author(s):  
Kimura Patar Tamba ◽  
Melda Jaya Saragih
Keyword(s):  
High School Students ◽  
Junior High School ◽  
Junior High ◽  
Descriptive Analysis ◽  
Historical Analysis ◽  
Quadratic Equation ◽  
School Students ◽  
Quadratic Inequality ◽  
Epistemological Obstacles ◽  
Ways Of Thinking

Students often experience difficulties and errors in solving quadratic inequality problems. These difficulties and errors are not only caused by students’ ignorance or misconceptions, but also caused by epistemological obstacles. This study aimed to determine the epistemological obstacles faced by the junior high school students in quadratic inequality. This research was a qualitative research that involved 105 ninth-grade students at one of the junior high schools in Bandung, Indonesia. The data were collected through open-ended tasks and task-based interviews. The data were analyzed using the inductive coding process to classify students’ errors.  The descriptive analysis was carried out to reveal students’ ways of understanding and ways of thinking behind each error to be compared with historical analysis. Based on the description of ways of understanding and ways of thinking and comparison with this historical phenomenon, the epistemological obstacles had be confirmed. The results showed that there were epistemological obstacles in quadratic inequalities. The epistemological obstacles consisted of students' quadratic equation knowledge acts and students' arithmetic knowledge acts. However, no epistemological obstacles were found in the development history of quadratic inequality. Students' epistemological obstacles were parallel to the historical phenomena of quadratic inequality.  

scholarly journals Effectiveness of Constructivism Approach to Increase Mathematical Communication Skill of Students Junior High School

2018 ◽  
Vol 5 (2) ◽  
pp. 1
Author(s):  
Hadijah Hadijah
Keyword(s):  
High School ◽  
High School Students ◽  
Communication Skills ◽  
Junior High School ◽  
Junior High ◽  
Descriptive Analysis ◽  
School Students ◽  
Mathematical Communication ◽  
Post Test ◽  
The City

The purpose of this study was to analyze and explore the effectiveness of constructivism approaches in improving mathematical communication skills of junior high school students in the city of Paser. The experimental quasi method was used in this study to test the hypothesis of the study. The sample of the study at three junior high schools in Paser City, representing high, medium and low school students.. The instruments used in this study were pre-post test, pre-post questionnaires, and observation. The data were analyzed using independent sample t-tests, paired sample tests, annova tests, and descriptive analysis. The findings of pre-post test and pre-post questionnaire analysis using t-test showed that there were significant differences in group mathematical communication skills using constructivism approach compared to groups using conventional approaches at all achievement levels of high school students (high, simple and low). Based on the observation, it is found that high achievement school students have good mathematical communication skills in mathematical communication, these are identified in many aspects and observation indicators achieved by students during learning.

scholarly journals Profile of Junior High School Students' Constraints in Online Science Learning

2021 ◽  
Vol 2 (5) ◽  
pp. 557-564
Author(s):  
Desy Suryani ◽  
Eko Hariyono ◽  
Tjipto Prastowo
Keyword(s):  
High School ◽  
Online Learning ◽  
High School Students ◽  
Junior High School ◽  
Junior High ◽  
Descriptive Analysis ◽  
Junior High School Students ◽  
Teaching Materials ◽  
School Students ◽  
Learning Constraints

This research aims to determine the online learning constraints of Junior High School students in Nganjuk on science subjects. The change in learning methods that were originally carried out face-to-face to online learning experienced several obstacles such as internet connection, lack of enthusiasm for learning, difficult materials, unclear teaching materials, and teacher’s teaching methods. The type of this research is descriptive survey research, the data of this research was obtained from 70 junior high school students in Nganjuk. The data collection technique in this research was a questionnaire (questionnaire) while the instrument used in this research was an online Google Form questionnaire, which is distributed through the WhatsApp application. The data analysis technique used in this research is descriptive analysis. The results showed that the most common obstacle felt by junior high school students in Nganjuk was the lack attractiveness of teaching materials.

scholarly journals BENDA MANIPULATIF DARI SANDAL JEPIT DAN PELEPAH RUMBIA UNTUK PEMAHAMAN KONSEP ALJABAR SISWA KELAS VIII SMP

2018 ◽  
Vol 6 (1) ◽  
Author(s):  
Fachrurazi Fachrurazi.
Keyword(s):  
High School ◽  
High School Students ◽  
Junior High School ◽  
Junior High ◽  
Quadratic Equation ◽  
Junior High School Students ◽  
School Level ◽  
Research Subjects ◽  
School Students ◽  
Mathematical Abstraction

 Student difficulties in understanding algebra particularly in factoring is because teachers have not been able to utilize manipulative objects (props) as a medium to narrow nature of mathematical abstraction itself. Props mathematics is a concrete object that can be manipulated, in order to bridge mathematical abstraction. Flip-flops and frond thatch are two things that will serve as a manipulative object in learning algebra. The purpose of this study are: (1) to describe the use of flip-flops and frond thatch as manipulative objects to enhance the ability algebra of junior high school students; and (2) To know the use of manipulative objects flip-flops and frond thatch will reach or not the ability algebra of junior high school reached an average of more than 65. This study is a quantitative study with experimental method. In this study there is only one group of research subjects derived from the 3 school level (low, medium, and high), the experimental group doing mathematics by using manipulative objects. To determine the ability of an algebraic increase to more than 65 will be used t-test. The result showed that the tcount ttable (5:44 1.67), so in this case H0 is rejected. Further in the learning process was also found that the students are very easy in factoring a quadratic equation by using the manipulative objects. The conclusions of this study are: (1) Learning with the use of flip-flops and sago palm frond as manipulative objects to the increased ability of algebra junior high school students has been going well and facilitate student. (2) Learning mathematics algebra material using props from the flip-flops and frond thatch can improve the understanding of junior high school eighth grade on the material algebra reaches an average (μ0) of more than 65.

scholarly journals PERILAKU MENGAKSES PORNOGRAFI ELEKTRONIK PADA REMAJA (Studi di SMP N di Kabupaten Pati)

2018 ◽  
Vol 12 (2) ◽  
pp. 125-135
Author(s):  
Siti Qorrotu Aini
Keyword(s):  
High School ◽  
High School Students ◽  
Junior High School ◽  
Random Sampling ◽  
Quantitative Research ◽  
Junior High ◽  
Descriptive Analysis ◽  
Junior High School Students ◽  
Sampling Area ◽  
School Students

ENGLISHAdolescent are the largest population of the target pornography. The purpose of this study were to describe the behavior of junior high school students in accessing pornography. The research method is descriptive quantitative research. The population are Junior High School (SMP) students in Pati regency in total 31.012.The sampel size is 395 students from 19 SMP. Teknik sampling using proportional random sampling area. This research was conducted in June to October 2015 . Data retrived by questionnaires in the form of closed questions. Data analyzed with descriptive analysis using SPSS 16. The results showed that 29.11% of respondents indicated behavioral accessing pornography, 67% of respondents who accessed porn is male 77% and 33% female, most respondents grade 9 had been accessing pornography 62%, the age of first accessing pornography mostly at the age of 12 (27%) and 13tahun (27%) , media sources such as smartphone and VCD from friends (37% ) and the internet (35%), where access to pornography is in the house as much as 48.7%, while accessing pornography majority partner is a friend as much as 60.9%, the response time of viewing pornography is largely disgusted as much as 41.7%, reasons to access mostly for fun as much as 39.1%. INDONESIARemaja merupakan populasi terbesar yang menjadi sasaran pornografi. Penelitian ini dimaksudkan untuk mendapatkan gambaran secara kuantitatif tentang perilaku siswa SMP dalam mengakses materi pornografi.Penelitian ini merupakan penelitian kuantitatif deskriptif. Populasi penelitian adalah siswa siswi Sekolah Menengah Pertama (SMP) di Kabupaten Pati yang berjumlah 31.012.Sampel penelitian ini terdiri atas 395 siswa dari 19 SMP N yang bersedia menjadi responden penelitian.Teknik pengambilan sampel menggunakan proporsional area random sampling. Penelitian ini dilakukan pada bulan Juni sampai Oktober 2015.Pengambilan data penelitian dengan menggunakan angket berupa pertanyaan tertutup.Data dianalisis dengan analisis deskriptif dengan menggunakan bantuan SPSS 16. Hasil penelitian menunjukkan bahwa 29,11% responden menunjukkan perilaku mengakses meteri pornografi,67% responden pengakses porno berjenis kelamin laki-laki 77% dan 33% perempuan, sebagian besar responden kelas 9 sudah pernah mengakses materi porno yaitu 62%, usia pertama kali mengakses pornografi sebagian besar pada usia 12&13tahun yaitu 54%, Sumber media berupa Hp dan VCD dari teman (37%) dan internet (35%), tempat mengakses materi pornografi adalah di rumah sebanyak 48,7%, partner saat mengakses pornografi sebagian besar adalah teman sebanyak 60,9%, respon saat melihat materi pornografi sebagian besar adalah jijik sebanyak 41,7%, Alasan mengakses sebagian besar karena iseng/coba-coba sebanyak 39,1%.

scholarly journals Pemilihan Layanan Satuan Pendidikan SMP oleh Pelajar yang Berdomisili di Kecamatan Kuranji Kota Padang

JURNAL BUANA ◽  
2018 ◽  
Vol 2 (3) ◽  
pp. 882
Author(s):  
Fazil Akbar ◽  
Yurni Suasti ◽  
Triyatno .
Keyword(s):  
High School ◽  
High School Students ◽  
Junior High School ◽  
Junior High ◽  
Descriptive Analysis ◽  
School Of Education ◽  
Education Students ◽  
School Students ◽  
Descriptive Research ◽  
Education Service

Aims of this research was to describe how junior high school of education unit service selected by students who are domiciled in Subdistrict Kuranji and reasons of students in choosing the education level of junior high school. This research is descriptive research with quantitative approach. The population of this research is the junior high school students residing in Kuranji district by the 8094 people. Withdrawal of samples using a proportional random sampling with a total of 98 people. Data were collected through interviews using questionnaires, then a descriptive analysis techniques and using percentage. This research found that service units selected by the Junior High School education students at Kuranji Subdistrict tend to be balanced between the select service in the districts and are outside the district, namely, 52 percent chose education service located in Sub Kuranji, while 48 percent chose education service outside the Sub Kuranji. The reasons students choose a JUNIOR HIGH SCHOOL in the district, the vast majority choose because it's close to home. For students choosing junior high school lies outside the district, most of the memlih due to the popularity and the school's accreditation, and encouragement of parents.

scholarly journals Profil Keterampilan Kerjasama Siswa Kelas VII di Salah Satu SMP Swasta di Magelang

2018 ◽  
Vol 7 (2) ◽  
pp. 132
Author(s):  
Mayasari Mahfudhotul Khasanah ◽  
Adhe Bayu Pangestu ◽  
Intantiasari Intantiasari ◽  
Noni Shella HP ◽  
Fitri Susanti ◽  
...  
Keyword(s):  
High School ◽  
High School Students ◽  
Junior High School ◽  
Junior High ◽  
Descriptive Analysis ◽  
Sampling Technique ◽  
Survey Method ◽  
School Students ◽  
Qualitative Descriptive ◽  
Study Population

This study aims to determine the profile of cooperation skills of grade VII students in one private junior high school in Magelang. This study uses a survey method. The study population was all seventh grade junior high school students. The sampling technique uses purposive random sampling with a sample of 25 students. Students' cooperative skills are measured in classroom observations, questionnaires, and interviews. Data analysis used qualitative descriptive analysis. The results of this study indicate that of 36 students there are 0% of students who have very low collaboration skills, 0% of students who have low cooperative skills, 0% of students who have moderate cooperation skills, 72% of students who have high cooperative skills, and 28% of students who have very high cooperation skills. The average cooperative skills of class VII students are high.

scholarly journals PENGARUH HARGA DIRI TERHADAP KECENDERUNGAN PERILAKU SELF INJURY PADA SISWA SMP NEGERI DI KECAMATAN TEMBALANG TAHUN PELAJARAN 2019/2020

2020 ◽  
Vol 6 (2) ◽  
pp. 139
Author(s):  
Nadia Rachma Putri ◽  
Eko Nusantoro
Keyword(s):  
High School ◽  
High School Students ◽  
Junior High School ◽  
Junior High ◽  
Descriptive Analysis ◽  
Total Sample ◽  
Self Esteem ◽  
School Students ◽  
Quantitative Descriptive Analysis ◽  
Self Injury

This study aims (1) to know the level of self-esteem, (2) to know the tendency of self-injury behavior, and (3) to find out the effect of self-esteem on the tendency of self-injury behavior in state junior high school students in Tembalang District. The approach used in this study is a quantitative approach to the type of correlational research. Data collection techniques used were psychology scale with 24 items self-esteem scale instrument and 34 items self-injury behavior tendency scale. The population in this study were students of class VIII and XI state junior high school in Tembalang District with a total sample of 187 students who were determined purposively. Data analysis techniques used (1) quantitative descriptive analysis to describe the level of self-esteem and the tendency of self-injury behavior in students, (2) hypothesis testing with product moment analysis to determine the effect of self-esteem on the tendency of self-injury behavior. The results showed that self-esteem influences the tendency of self-injury behavior.

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