scholarly journals Open-Ended Problems for Junior High School Students’ Mathematical Reasoning

2020 ◽  
Vol 3 (2) ◽  
pp. 88
Author(s):  
Yatha Yuni ◽  
Andri Suryana
Keyword(s):  
High School ◽  
High School Students ◽  
Junior High School ◽  
Junior High ◽  
Mathematical Reasoning ◽  
Junior High School Students ◽  
P Value ◽  
Reasoning Ability ◽  
School Students ◽  
Reasoning Abilities

The abilities that must be mastered by high school students according to the demands of the 2013 curriculum include reasoning. Students who have good reasoning abilities make it easier to understand mathematics. But in reality there are still many students who have low mathematical reasoning ability, seen when they have difficulty solving math problems. This research objective is to prove the habit of solving open-ended problems that can improve the mathematical reasoning ability of junior high school students based on the level of initial mathematical ability: high, medium, and low. The study used an experimental method with a "One-Group pre-test post-test design". Randomly, selected 77 grade VII students of SMP Negeri in Bekasi as a sample. The prerequisite test shows that each level of data comes from groups that are normally distributed and homogeneous. The results showed normal gain, both overall and level showed improvement. Based on the t test obtained p value of 0.000 < 0.005, meaning this study can prove student habits in solving open-ended problems when learning mathematics on triangles and quadrilateral, can improve students' mathematical reasoning abilities.

scholarly journals Scientific Reasoning Abilities Profil of Junior High School Students in Jambi

2019 ◽  
Vol 3 (1) ◽  
pp. 21
Author(s):  
Rivani Dita Yediarani ◽  
Maison Maison ◽  
Ahmad Syarkowi
Keyword(s):  
High School ◽  
High School Students ◽  
Junior High School ◽  
Scientific Reasoning ◽  
Junior High ◽  
Junior High School Students ◽  
Cluster Sampling ◽  
Reasoning Ability ◽  
School Students ◽  
Reasoning Abilities

<p>This study aims to determine the profile of scientific reasoning ability of junior high school students in Jambi. The type of this research is descriptive quantitative, while the research design using survey type cross-sectional design. The population in this study were junior high school students in Jambi City with a total of 25,789 students. The sampling technique used is cluster sampling. The sample used in this study is 1146 students from 15 schools with different accreditation levels. Techniques of data collection of this study are using the problem of reasoning abilities from lawson's classroom test of scientific reasoning (CTSR) in 2000. The results showed that 100% of the sample is concrete. With the ability of Conservation of matter and volume as the most ability owned by students with the percentage of 16.1% and the lowest ability is the ability of Proportional reasoning with a percentage of 3.0%. This shows that students have not been able to use their reasoning for abstract things. In general, no reasoning ability that has a percentage of 50% indicates that students' reasoning ability in junior high school is still very low and fundamental. </p><p><em> </em></p><strong>Keywords: </strong> Profile, scientific reasoning, junior high school, Jambi city<p> </p>

scholarly journals HUBUNGAN MINAT BELAJAR TERHADAP KEMAMPUAN PENALARAN MATEMATIK SISWA SMP PADA MATERI LINGKARAN

2018 ◽  
Vol 1 (2) ◽  
pp. 93
Author(s):  
Winda Awaliyah ◽  
Aflich Yusnita Fitrianna
Keyword(s):  
High School ◽  
High School Students ◽  
Student Learning ◽  
Junior High School ◽  
Junior High ◽  
Mathematical Reasoning ◽  
Circle Method ◽  
Junior High School Students ◽  
School Students ◽  
Learning Interest

This research aims to determine the relationship of student learning interest to the mathematical reasoning ability of junior high school students in chapter circle. Method used is quantitative with correlation method. this research was conducted in one of  junior high school in Cimahi with population of all students of  class IX and sample IX-M as many as 30 people. Instrumen used in this research is a questionnaire instrument to measure the level of student learning interest and test instrument to measure the ability mathematical reasoning of students. Analysis results visible there is a significant relationship between student learning interests with the ability of mathematical reasoning and contribution/ influence interest in learning on the ability of mathematical reasoning of junior high school students of class IX is positive is equal to 74,64% while the remaining 25,36% influenced by other factors.

scholarly journals IMPROVING STUDENTS’ MATHEMATICAL UNDERSTANDING AND REASONING ABILITY AND MOTIVATION THROUGH THINK TALK WRITE APPROACH (TTW) JUNIOR HIGH SCHOOL STUDENTS

2018 ◽  
Vol 1 (2) ◽  
pp. 194
Author(s):  
Diky Irawan ◽  
Euis Eti Rohaeti ◽  
Asep Ikin Sugandi
Keyword(s):  
High School ◽  
High School Students ◽  
Junior High School ◽  
Junior High ◽  
Mathematical Reasoning ◽  
Mathematical Understanding ◽  
Junior High School Students ◽  
Learning Motivation ◽  
School Students ◽  
Class Viii

This study aims to examine the achievement and improvement of the ability of understanding and mathematical reasoning and motivation through Think Talk Write (TTW) approach to junior high school students. The population in this study is all junior high school in West Bandung Regency and the sample is class VIII of SMPS Darun Nasya, The instrument used in the research is a question of understanding and mathematical reasoning and questionnaire of learning motivation attitude, then the data obtained is processed through a two-way ANOVA test and correlation and regression test, data processing using IBM Statistics SPSS 21. Results of research involving TTW as independent variables in the experimental class and direct learning in the control class showed: There was a difference in achievement and improvement of mathematical understanding between control and experiment class, There are differences in achievement and improvement of mathematical reasoning between control and experiment class, There is difference of student's learning motivation between control and experiment class.

scholarly journals INCREASING STUDENT’S UNDERSTANDING ABILITY AND MATHEMATICAL REASONING AND LEARNING MOTIVATION OF JUNIOR HIGH SCHOOL STUDENTS USING DISCOVERY LEARNING METHOD

2018 ◽  
Vol 1 (2) ◽  
pp. 143
Author(s):  
Ida Juhanah ◽  
Jozua Sabandar
Keyword(s):  
High School ◽  
High School Students ◽  
Junior High School ◽  
Junior High ◽  
Mathematical Reasoning ◽  
Discovery Learning ◽  
Junior High School Students ◽  
Control Group ◽  
Learning Method ◽  
School Students

This research aims to examine the improvement of understanding ability and mathematical reasoning as well as the motivation of learning of junior high school students by discovery learning method conventional method. In addition, it aims to check the improvement of understanding ability and mathematical reasoning as well as the motivation of learning though junior high school students. This research was quasi experiment which was designed to nonequivalent control group. The study The population on this research was all the junior high school students of Cipeundeuy 2 Junior High School West Bandung Regency. The Sample was two classes of 7th grade students. The data was attained by understanding thinking and mathematical test which using material of algebraic form and questionnaire motivation to learn

Hubungan Jenis Kelamin, Usia dan Media Pornografi dengan Perilaku Seksual Berisiko Siswa SMP di Kota Semarang

2020 ◽  
Vol 19 (1) ◽  
pp. 62-67
Author(s):  
Nurul Fitriani Rahayu ◽  
Ratih Indraswari ◽  
Besar Tirto Husodo
Keyword(s):  
High School ◽  
Sexual Behavior ◽  
High School Students ◽  
Junior High School ◽  
Risky Sexual Behavior ◽  
Junior High ◽  
Junior High School Students ◽  
P Value ◽  
School Students ◽  
Chi Square

Latar Belakang: Sifat khas remaja yang memiliki rasa ingin tahu yang besar, menyukai petualangan dan tantangan serta cenderung bertindak tanpa memikirkan akibatnya, menyebabkan remaja sering kali terjerumus ke dalam perilaku yang berisiko, salah satunya adalah perilaku seksual berisiko. Media pornografi menjadi salah satu faktor pendorong utama remaja terjerumus ke dalam perilaku seksual berisiko. Penelitian ini bertujuan untuk menganalisis hubungan jenis kelamin, usia dan keterpaparan media pornografi dengan perilaku seksual berisiko siswa SMP di Kota Semarang.Metode: Jenis penelitian ini adalah analitik survei dengan pendekatan cross sectional. Sampel dari penelitian ini adalah 104 remaja awal (usia 12-15 tahun) yang terpilih dengan menggunakan teknik multistage random sampling.  Penelitian ini menggunakan analisis univariat dan bivariat dengan menggunakan uji Chi Square.Hasil: Sebagian besar jenis kelamin responden pada penelitian adalah laki-laki (51,9%) dan sisanya adalah perempuan (48,1%). Usia responden didominasi pada usia ≥14 tahun (76,9%). Hasil penelitian menunjukkan bahwa 41,3% responden telah mengakses pornografi dengan alasan terbanyak adalah didorong rasa penasaran (26,9%) dan diajak teman (18,3%). Responden mendapatkan informasi mengenai pornografi didapatkan dari teman, baik teman sekolah (24%) dan teman di rumah (17,3%). Media sosial (22,1%) dan situs porno (19,2%) menjadi tempat dimana responden mengakses pornografi. Hasil analisis chi-square menunjukkan terdapat hubungan antara jenis kelamin (p-value= 0,045) dan keterpaparan media pornografi (p-value= <0,001) dengan perilaku seksual berisiko siswa SMP di Kota Semarang.Simpulan dan Saran: Terdapat hubungan antara jenis kelamin dan keterpaparan media pornografi dengan perilaku seksual siswa SMP di Kota Semarang. Pemberian pendidikan seks dan pembuatan safe browsing di area sekolah diperlukan untuk mengatasi perilaku seksual yang berisiko pada siswa SMP. Kata kunci: Media pornografi, perilaku seksual, remaja Title: The Relationship between Sex, Age and Pornography Media with Risk Sexual Behavior of Middle School Students in Semarang City Background: The special nature of adolescents who have a great curiosity, like adventure and challenges and tend to act without thinking about the consequences, causing teens often fall into risky behavior, one of which is risky sexual behavior. Pornography media is an important factor for teenagers who often fall into risky sexual behavior. This study aimed to analyze the relationship between sex, age and exposure to pornographic media with sexual behavior of junior high school students in the city of Semarang.Method: This type of research was analytic survey with cross sectional approach. The sample from this study was 104 early adolescents (aged 12-15 years) who were selected using a multistage random sampling technique. This study uses univariate and bivariate analysis using Chi Square test.Results: Most of the respondents' sex in the study were male (51.9%) and the rest were female (48.1%). The age of the respondents was dominated by age ≥14 years (76.9%). The results showed that 41.3% of respondents had accessed pornography with the most reasons being driven by curiosity (26.9%) and being invited by friends (18.3%). Respondents get information about pornography obtained from friends, both school friends (24%) and friends at home (17.3%). Social media (22.1%) and porn sites (19.2%) are places where respondents access pornography. The results of the chi-square analysis showed that there was a relationship between sex (p-value= 0,045) and exposure to pornographic media (p-value = <0.001) with risky sexual behavior of junior high school students in the city of Semarang. Conclusion and Recommendation: There was a relationship between sex and exposure to pornographic media with sexual behavior of junior high school students in Semarang City. Providing sex education and making safe browsing for school students are needed to deal with risky sexual behavior in junior high school students. Keywords: Pornographic media, sexual behavior, adolescent

scholarly journals Upaya Peningkatan Pengetahuan dan Sikap Siswa SMP dalam Pencegahan Penggunaan NAPZA

2020 ◽  
Vol 15 (2) ◽  
pp. 42-50
Author(s):  
Heryanto Sumbung ◽  
Evi Martha
Keyword(s):  
High School ◽  
High School Students ◽  
Drug Use ◽  
Junior High School ◽  
Junior High ◽  
Junior High School Students ◽  
P Value ◽  
School Students ◽  
Post Test ◽  
Knowledge And Attitude

Background: Ransiki is a district in South Manokwari Regency which was a new division in West Papua Province. Junior high school students in Ransiki are at risk of drug use. An effort should be made to improve the knowledge and attitude of junior high school students as a form of prevention of drug use. This study aimed to improve knowledge and attitude for the prevention of drug use in junior high school students in Ransiki using the training module "Pengenalan Bahaya NAPZA bagi Kesehatan".Method: This was a Pre Experimental study using the one group pre-test and post-test design. The study samples were 60 students. Samples were determined by purposive sampling. The intervention was conducted by providing module training for five meetings. The pre-test and post-test of students were analyzed using the Dependent T-test.Results: The results showed there was a significant relationship between the mean score of students’ knowledge before the intervention (39.44) and after the intervention (77.77) (p-value = 0.0001). There was a significant relationship between the mean score of students’ attitudes before the intervention (73.40) and after the intervention (82.40) (p-value = 0.0001). The training module "Pengenalan Bahaya NAPZA bagi Kesehatan" can be used to improve students' knowledge and attitude to prevent drug use in junior high school students of South Manokwari Regency

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