scholarly journals Senior high school students’ understanding of mathematical inequality

Jurnal Elemen ◽  
2022 ◽  
Vol 8 (1) ◽  
pp. 201-215
Author(s):  
Evangelista Lus Windyana Palupi ◽  
Sylvana Novilia Sumarto ◽  
Mayang Purbaningrum

Mathematics inequality is an essential concept that students should fully understand since it is required in mathematical modeling and linear programming. However, students tend to perceive the solution of the inequalities problem without considering what the solution of inequality means. This study aims to describe students’ mistakes variations in solving mathematical inequality. It is necessary since solving inequality is a necessity for students to solve everyday problems modeled in mathematics. Thirty-eight female and male students of 12th-grade who have studied inequalities are involved in this study. They are given three inequality problems which are designed to find out students’ mistakes related to the change of inequality sign, determine the solution, and involve absolute value. All student work documents were analyzed for errors and misconceptions that emerged and then categorized based on the type of error, namely errors in applying inequality rules, errors in algebraic operations, or errors in determining the solution set, then described. The result shows that there were some errors and misconceptions that students made caused by still bringing the concept of equality when solving the inequalities problem. It made them did not aware of the inequality sign. Students are still less thorough in operating algebra and do not understand the number line concept in solving inequalities. The other factor was giving “fast strategy” to the students without considering the students’ understanding.

2002 ◽  
Vol 91 (1) ◽  
pp. 193-198 ◽  
Author(s):  
Nadya M. Kouzma ◽  
Gerard A. Kennedy

This study aimed at investigating the relationship between hours of homework, stress, and mood disturbance in senior high school students, 141 boys and 228 girls, recruited from high schools across Victoria, Australia. Participants' ages ranged from 16 to 18 years ( M = 16.6, SD = .6). A 1-wk. homework diary, a Self-reported Stress scale, and the Profile of Mood States were administered to students. Analysis showed that the number of hours spent completing homework ranged from 10 to 65 hours per week ( M = 37.0, SD = 12.2). Independent samples t-test analyses showed significant sex differences, with female students scoring higher on hours of homework, stress, and mood disturbance compared to male students. Pearson product-moment correlations were significant and positive for hours of homework with stress and for hours of homework with mood disturbance.


LOKABASA ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 61-72
Author(s):  
Maolidda Auliya ◽  
Hernawan Hernawan

The background of this research is the lack of students' understanding of Sundanese sentences, they are considered confused in selecting the spelling, words or appropriate sentence patterns. This research aims to describe the form and structure of sentences in articles written by students. The method used in this study is descriptive with a qualitative approach, with the techniques used in data collecting are test technique and record keeping technique. The result of this research are, first, there is a description of the sentence forms in the article. Second, the structure of Sundanese sentences found in student articels. The result of this research can be used as learning material for teachers to introduce Sundanese grammar to students especially 12th grade in twelve senior high school students IPS 2. AbstrakLatar belakang penelitian ini yaitu kurangnya pemahaman siswa terhadap kalimat-kalimat bahasa Sunda dalam memilih ejaan, kata, ataupun struktur kalimat yang sesuai. Penelitian ini mempunyai tujuan untuk mendeskripsikan bentuk dan struktur kalimat dalam artikel karangan siswa. Metode yang digunakan yaitu deskriptif dengan pendekatan kualitatif, dengan teknik yang digunakan dalam mengumpulkan data yaitu teknik tes dan studi pustaka. Hasil penelitian ini yaitu pertama, adanya deskripsi tentang bentuk-bentuk kalimat yang terbagi menjadi kalimat tunggal dan kalimat majemuk. Kedua, struktur kalimat bahasa Sunda yang ditemukan pada artikel siswa SMA kelas XII terdiri atas fungsi dan kategori. Penelitian ini dapat dijadikan bahan pembelajaran guru untuk mengenalkan tata bahasa Sunda kepada siswa khususnya di SMAN 12 Bandung kelas XII IPS 2.


Humaniora ◽  
2011 ◽  
Vol 2 (1) ◽  
pp. 281
Author(s):  
Muhamad Nanang Suprayogi

This study intended to know the description of stress coping strategies of 12th grade students of Jakarta 42 State Senior High School in facing National Exam. This study stems from the interest of researchers towards the number of cases of high school students who do not pass the National Exam. Researchers seek to impart knowledge to students on how to cope with their stress effectively and to the school and parents for providing the proper approach for students to face the National Exam. This study is a quantitative study using questionnaires as a measurement to know the description of stress coping strategies of Jakarta 42 State Senior High School students. Research instruments are compiled based on the theory developed by Lahey. In this research, obtained results that the class XII students of SMAN 42 Jakarta have a more predominant use of effective coping to cope with their stress in facing the National Exam. The most widely used strategy is removing stress and managing stress reaction  


2021 ◽  
Vol 27 (1) ◽  
pp. 3549-3553
Author(s):  
Dimitar B. Marinov ◽  
◽  
Darina N. Hristova ◽  

Adolescence is a key stage of life through which the patterns for physical activity, nutrition, and other health habits form. Aim: Evaluating the eating behavior of 401 high-school students from varna studying in 12th grade (11.2% of the whole group, used as a representative sample). Methods: FFQ (food frequency questionnaire) on 37 food groups, questionnaire for eating attitude, IPAQ (validated questionnaire for the physical activity in the last 7 days), anthropometrical measurements (height, weight, BMI). Results: Roughly 70% of students in 12th grade who are underweight, overweight (OW), or obese ate regular breakfast, compared to 84% of those with normal weight. This was the most commonly skipped meal of the day. We found a statistically significant correlation between BMI in boys and eating breakfast regularly. (r=-0.473**, p<0.001). Skipping breakfast is quite common (49,7%) among OW girls. Its correlation with BMI is also significant (r=-0.492**, p<.001). White bread and other bakery products are consumed very often by both genders. Consumption of fruits and vegetables, milk (51,3%), and fish (68%) is low amongst adolescent girls. In contrast, male students have at least 2 portions of milk or milk products daily (94,5%). This finding correlates positively with their BMI (r=0.401**, p<0.001). There is a normal BMI in 60.7% of female and 67.2% of male students (18,5-24,9кg/m2). 23,5% of female students in 12th grade are underweight, especially those with physical activity that is higher than average (38,9%). Conclusion: Large percentage of the female students in 12th grade wish to lose bodyweight, including those in the underweight group. Low self-esteem and restrictive dieting can increase the risk of eating disorders in young girls.


2013 ◽  
Vol 16 ◽  
Author(s):  
I-Chieh Chen

AbstractThe purpose of this paper was to examine the relationships of homosexual male students at the senior high school level and their loneliness using parental bonding attitude as a moderating factor. An amount of 127 homosexual male senior high school students in Taiwan is studied. The Pearson correlation analysis and the hierarchical regression analysis are adapted to examine two proposed hypotheses. Based on the results, homosexual male senior high school students in both hyper-masculine and feminine gender roles are found to feel loneliness, but levels of loneliness of those who possess hyper-masculine gender role are relatively lower than those in a feminine role. In addition, the levels of loneliness of homosexual male senior high school students could be negatively affected by parental bonding attitudes (Care). Recommendations and suggestions for parents as well as teachers of homosexual senior high school male students and future studies are underscored at the end of this article.


1974 ◽  
Vol 67 (3) ◽  
pp. 253-254
Author(s):  
James M. Sconyers

This new and interesting use of number lines to multiply numbers and determine inverses of numbers should prove of interest to junior and senior high school students who are familiar with the idea of number line. It would make a nice presentation at a mathematics club meeting.


2021 ◽  
Vol 2098 (1) ◽  
pp. 012013
Author(s):  
F Laurenty ◽  
H Sulsilah ◽  
A M Amin ◽  
A Samsudin ◽  
D Rusdiana

Abstract Diffraction grating innovative media (DIAGRAM) is a physics experimental tool that can be implemented in the learning of diffraction grating material. This research endeavored to analyse students’ conceptual understanding on diffraction grating material after using the diffraction grating innovative media (DIAGRAM). Pre-experimental design was used as the method in this research with one-group pretest-posttest as the design and 10 female students and 1 male students from three schools in Indonesia which are in Banjaran, Pamarayan and Makassar participated. Starting from interpretation test using multiple choices test consisting of 8 questions and using google form, the stage then carried out learning activity utilizing the DIAGRAM and given a posttest in the end of the class. At the last data had been analysed by N-Gain. The come about of this consider were gotten by students’ increment in high category which is 0,73. To sum up, diffraction grating innovative media (DIAGRAM) can make enhancement of senior high school students’ conceptual understanding in diffraction grating material.


2019 ◽  
Vol 1 (2) ◽  
pp. 103
Author(s):  
Dewi Rosikhoh ◽  
Liny Mardhiyatirrahmah ◽  
Abdussakir Abdussakir

Metacognition has a key position on problem solving in mathematics. Metacognition is thinking about what they think. This research is qualitative research purposing for identifying of students metacognition level on matematics problem solving based on their quatity juzs of Quran memorized. The subjects of this research is three students who are in 12th grade in Senior High School. Students metacognition level is identified through test and indicator of metacognition level. The result of research show that metacognition level of Senior High School students taking in level of aware use, semi strategic use and semi reflective use. The student who has less than 10 juzs in Quran memorized is in aware use level. The student who has 10 until less than 20 juzs in Quran memorized is in semi strategic use level. The student who has 20 until 30 juzs in Quran memorizing is in semi reflective use level. Based on this reasearch, researchers conclude that the more juzs memorized, the higher level that students get.


Author(s):  
Syahruddin Mahmud ◽  
Zainudin Bin Abu Bakar ◽  
Hadijah Binti Djaffri

This paper aims to identify the bullying type in South Sulawesi, Indonesia from gender perspective by using quantitative study. Quantitative data were obtained by using a set of questionnaires from 545 respondents in six districts in South Sulawesi. The result showed that bullying types such physical bullying, verbal bullying, social bullying and cyber bullying are significantly difference in terms of gender in South Sulawesi, Indonesia. Separately, the whole bullying type such as physical, verbal, social and cyber are also significantly different between male and female. The male students are more involved in bullying compared with female students. This finding hopefully can provide useful information for those who involved in bullying prevention program, school administrative staff and teacher.


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