scholarly journals THE EFFECTS OF USING BAR MODEL TOWARDS ALGEBRAIC THINKING SKILL IN ALGEBRAIC PROBLEM SOLVING AMONG STUDENTS

2021 ◽  
Vol 6 (44) ◽  
pp. 38-51
Author(s):  
Janet Jahudin ◽  
Nyet Moi Siew
Keyword(s):  
International Student ◽  
Student Assessment ◽  
Thinking Skills ◽  
Algebraic Thinking ◽  
International Student Assessment ◽  
Significant Difference ◽  
Post Test ◽  
Inference Test ◽  
Quasi Experimental ◽  
The Mean

Algebraic thinking skills are one of the elements emphasized in the benchmarking of PISA (Program for International Student Assessment). However, the algebraic thinking skills among students were found to be still at a very weak level. The purpose of this study was to look at the effect of the bar model method on students’ algebraic thinking skills. Pre-test and post -test were used as research instruments. The study was an experimental study conducted on 90 Form One students from a school in Tuaran District, Sabah. This study used a quasi-experimental design of pre-and post-test. The sample was divided into 3 groups, namely the group of learning methods i) Bar Model (MB, n = 30), ii) Bar Model and Cooperative Learning (MBPK, n = 30), and conventional (TR, n = 30). Statistical inference test, One-way Analysis of Variances Test (ANOVA) was used to analyze the findings of this study. The results of one-way ANOVA analysis showed that there was a significant difference in the mean score of the post-test between the MB group, MBPK group, and TR group (F (2, 87) = 9.316, p <.05). Significant differences in mean scores for post-test could only be seen between TR group with MB group (P = 0.019) and between TR group with MBPK group (P = 0.000) while insignificant differences were shown between MB and MBPK group (P = 0.304). Therefore, it is suggested that mathematics teachers use the Bar Model as a teaching aid to improve students' algebraic thinking skills.

Integration of Self-diagnosis in Pascal Law Learning Using STEM Approach

2020 ◽  
Vol 12 (2) ◽  
pp. 104
Author(s):  
Siti Hannah Padliyyah
Keyword(s):  
International Student ◽  
Student Assessment ◽  
Active Role ◽  
Stem Learning ◽  
International Student Assessment ◽  
Science Technology ◽  
Engineering Mathematics ◽  
Post Test ◽  
11Th Grade

Indonesia is ranked 56th out of 65 participating countries in the Program for International Student Assessment (PISA) based on data 2015. According to PISA results, the average science score of Indonesian students is 403, where this number is categorized as low. This is because students are still in the process of understanding and have not yet fully recognized the location of their mistakes. Students can diagnose the location of their mistakes through self-diagnosis activities. Self-diagnosis activities require the active role of students during the learning process. One approach that can increase the active role of students is STEM (Science Technology Engineering Mathematics). However, research at this time is still rarely found self-diagnosis activities that are applied to the STEM approach. Therefore, this research has the aim to find out the increase in mastery of physical concepts and self-diagnosis of students on the STEM learning approach to the theory of poscal law class XI High School.This study uses a One-Group pretest-posttest design with a sample of 30 ini 11th grade highschool from one schools in Bandung. . Based on the findings, there is an increase in mastery of concepts [<g> = 0.51] from pre-test to post-test. In self-diagnosis activities identified that there are differences in scores [z = 1.75; p = 0.9599] student assessment results of researchers and self-scoring results. Deeper self-diagnosis triggers a series of implicit steps that encourage them to rearrange their cognition by correcting the mistakes they make when solving problems. So that learning activities using the STEM approach that involves self-diagnosis activities can improve students' mastery of concepts.

scholarly journals GeoGebra and students’ learning achievement in trigonometric functions graphs representations and interpretations

2021 ◽  
Vol 16 (2) ◽  
pp. 827-846
Author(s):  
Nthabiseng Mosese ◽  
Ugorji I. Ogbonnaya
Keyword(s):  
Control Group ◽  
Trigonometric Functions ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental ◽  
Equivalent Control ◽  
The Mean ◽  
Dynamic Mathematics ◽  
Students Success ◽  
Experimental Group

Making connections between the representations of trigonometric functions and an interpretation of graphs of the functions are major challenges to many students. This study explores the effectiveness of the GeoGebra on grade 12 students’ success in making connections between the representations of trigonometric functions and the interpretation of graphs. A non-equivalent control-group pre-test post-test quasi-experimental design was used. The sample of the study consisted of sixty-one grade 12 students from two schools. The results showed that there was a statistically significant difference between the mean achievements of the experimental group and the control group on making connections between representations of trigonometric functions, and on analyses and interpretations of representations of trigonometric functions, in favour of the experimental group. This study extends the findings of previous studies on the effectiveness of dynamic mathematics software on students’ learning of representations and interpretation of graphs of trigonometric functions.            Keywords: GeoGebra, functions graphs, Trigonometric functions

scholarly journals The Influence Of English Song As Learning Materials Towards The Students’ Pronunciation

2019 ◽  
Vol 5 (02) ◽  
pp. 131-135
Author(s):  
Dewi Yulyanti ◽  
Slamet Wahyudi Yulianto ◽  
Muhammad Anjar Nugraha
Keyword(s):  
Learning Process ◽  
Teaching And Learning ◽  
Qualitative Data ◽  
Research Result ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental ◽  
The Mean ◽  
And Control ◽  
Experimental Group

This research investigated whether or not there is the influence of English song towards the student’s pronunciation. This research used a quantitative method. Research design is an experimental class and control class, two classes were selected from eleventh-grade students at SMAN 1 Ciasem Subang. The Quasi-Experimental Research was conducted in four meetings. The data were obtained by observing the teaching and learning process, test, questionnaire, and interviewing the students. The research result of the analysis quantitative and qualitative data were as follows. The analysis of quantitative data, mean score of pre-test in the experimental class was 14.44. While the mean score in the control class was 14.58. Furthermore, the mean score of the post-test in the experimental class was 82.98. While the mean score post-test in the control class was 60.56. Based on the result, the experimental class students’ score on post-test were better in which the mean = 82.89 than their scores on pre-test the mean = 60.56 . in addition, the two-tailed value of p was 0.000 which was lower than 0.05 . in conclusion, the calculation of paired t-test showed that there was a significant difference between the pre-test and post-test scores of experimental group. The analysis of qualitative data show that used English song influence through students’ pronunciation by observing the teaching and learning process, test, questionnaire, and interviewing the students. The students were more confident and were not afraid of making mistakes when pronunciation.

scholarly journals Analysis of Language Literacy Skills in Biological Learning Contexts

BIOEDUSCIENCE ◽  
2020 ◽  
Vol 4 (2) ◽  
pp. 157-165
Author(s):  
Jihan Azhaar Ramadhanty ◽  
Vita Meylani ◽  
Edi Hernawan
Keyword(s):  
Mixed Methods Research ◽  
International Student ◽  
Student Assessment ◽  
Thinking Skills ◽  
Literacy Skills ◽  
International Student Assessment ◽  
Learning Contexts ◽  
Average Grade ◽  
Language Literacy ◽  
Biological Learning

Background: The results of PISA showed that Indonesian students' literacy skills in the field of science are still low. Until now, the cause of the problem is still little information reported. This study was conducted to analyze the language literacy skills of students in biological learning contexts. Methods: the methods used in the research is mixed methods research. This research involved 72 science program students who were selected by purposive sampling. The data were gained by observations, interviews and giving the posttest consisting of 17 questions of multiple-choice based on the Programme for International Student Assessment (PISA) indicator for language literacy in biological learning. Results: That the analysis of language literacy in the context of Biological learning has an excellent literacy with a high category. The research showed that the highest average grade of language literacy was in the integrate and interpret aspects of 75,00. Meanwhile, the lowest average grade in the reflect and evaluate aspects was 57,00. The average overall grade in the language literacy on Biological learning was 70,22. Conclusion: Sustainable literacy activities stimulate higher-order thinking skills, especially in the field of science, because language literacy skills can indirectly affect students' outcomes on scientific skills.    

scholarly journals The impact of collaborative model assisted by Google Classroom to improve students’ creative thinking skills

2021 ◽  
Vol 10 (2) ◽  
pp. 396
Author(s):  
Jumadi Jumadi ◽  
Riki Perdana ◽  
Muhammad Helmi Hariadi ◽  
Warsono Warsono ◽  
Andi Wahyudi
Keyword(s):  
Creative Thinking ◽  
Descriptive Analysis ◽  
Sampling Technique ◽  
Thinking Skills ◽  
Mixed Design ◽  
Collaborative Model ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental ◽  
The Impact

Indonesian students' creative thinking skill is still at a low level. This study aimed to examine the effectiveness of project collaborative model assisted by Google Classroom (PjCM-GC) in improving students' creative thinking skills. This research explored the differences between students who learned through the demonstration model (DM), project collaborative model (PjCM), and project collaborative model assisted by Google Classroom (PjCM-GC). It was a quasi-experimental with pre and post-test design. The population of this research was students at Senior High School, Lombok Timur-Indonesia. Random sampling technique was employed in this study. The sample was 86 science students grade XI (15-16 ages) who studied in SMAN 1 Aikmel. The data analyzed by paired-sample t-test, comparative-descriptive analysis, and ANOVA mixed design using SPSS 24. The study showed that The PjCM-GC group had a significant difference in the level of creative thinking skills (sig .0000). The PjCM-GC was the most effective model to improve the skills with a gain score of .47 (medium). Learning with the PjCM-GC model can be an alternative for policymakers and teachers to solve the problems of creative thinking.

scholarly journals The Effectiveness of Realia in Writing Descriptive Text: a Case of the Seventh Grade Students of SMP N 4 Semarang

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Devi Budi Wijaya ◽  
Suwandi Suwandi ◽  
Sukma Nur Ardini
Keyword(s):  
Experimental Design ◽  
Sampling Technique ◽  
T Test ◽  
Teaching Writing ◽  
Seventh Grade ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental ◽  
The Mean ◽  
Academic Year

This study is based on the research which attempted to examine the effectiveness of realia in writing descriptive text by the seventh grade students. The objectives of the research were (1) to analyze and find out  the students’ ability in writing descriptive text who are taught by using realia, (2) to analyze and find out  the students’ ability in writing descriptive text who are taught without using realia, (3) also to analyze and find out whether there is significant difference between students who are taught by using realia and those taught without using realia. Quasi experimental design was used with the population of 256 seventh grade students of SMP N 4 Semarang in the academic year 2017/2018. By using purposive sampling technique, there were two classes chosen as the sample of this study; vii a and vii b. The instruments of collecting data used were tests; pre-test and post-test. After the data were collected, they were analysed using t-test. The findings were as follows: (1) the ability in writing descriptive text by the students taught using realia was good with the mean of the post-test was 80.21. (2) the ability in writing descriptive text by the students taught without using realia was adequate with the mean of the post-test was 74.44. (3) there was significant difference of the two group students. t-test 4.89 > t-table 2.00. therefore, ha was accepted that realia was effective as a media in teaching writing of descriptive text.

Cross-cultural Measurement Invariance of the Items in the Science Literacy Test in the Programme for International Student Assessment (PISA-2015)

2020 ◽  
Vol 8 (2) ◽  
pp. 16
Author(s):  
Betül Alatlı
Keyword(s):  
Measurement Invariance ◽  
International Student ◽  
Science Literacy ◽  
Student Assessment ◽  
Cross Cultural ◽  
The Other ◽  
Item Bias ◽  
International Student Assessment ◽  
Significant Difference ◽  
Literacy Test

This study aimed to investigate cross-cultural measurement invariance of the PISA (Programme for International Student Assessment, 2015) science literacy test and items and to carry out a bias study on the items which violate measurement invariance. The study used a descriptive review model. The sample of the study consisted of 2224 students taking the S12 test booklet from Australia, France, Singapore, and Turkey. Measurement invariance analyses for the test were done using Multi-Group Confirmatory Factor Analysis (MGCFA). Differential Item Functioning (DIF), in other words, measurement invariance of the test items, was analyzed using the item response theory log-likelihood ratio (IRTLR), Hierarchical Generalized Linear Model (HGLM), and the Simultaneous Item Bias Test (SIBTEST) methods.According to the findings, the test was determined to exhibit structural invariance across cultures. The highest number of items showing DIF was observed in the comparisons of Australia-Singapore and Australia-France with 35%. The number of items showing DIF, with 24%, determined in bilateral comparisons which included Turkey, the only country taking the translated form among other countries, did not show a significant difference compared to the other comparisons. While the lowest number of items showing DIF was obtained from Singapore-France samples with 12%, the rate of items indicating DIF in the France-Turkey samples was 18%. On the other hand, 35% of the items showed cross cultural measurement invariance. An item bias study was carried out based on expert opinions on items identified and released as showing DIF in the comparisons of Turkey with Australia and Singapore.According to the findings, translation-bound differentiation of the items, familiarity of a culture group with the contents of the items, polysemy in the expressions or words used in the items, the format, or the stylistic characteristics of the items were determined to be the cause of the bias in the skills measured with the items.

scholarly journals IMPROVING VOCABULARY MASTERY BY USING TALKING STICK METHOD TO THE EIGHT GRADE STUDENTS OF MTS ANNAJAH PETALING

2020 ◽  
Vol 6 (2) ◽  
pp. 94-100
Author(s):  
Hartati Hartati
Keyword(s):  
Control Group ◽  
Group Design ◽  
Effective Factor ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental ◽  
Word Classes ◽  
The Mean ◽  
Academic Year ◽  
Experimental Group

The objectives of this research was to find out whether or not there was any significant difference in vocabulary mastery between students who were taught by using talking stick method or students who were taught without using talking stick method. The research was limited on word classes consisted of noun, adjective and verb in descriptive texts with the topic of the material was animal, people, thing, and places.This research was conducted by using quantitative method with a quasi-experimental group design. The experimental group students were taught by using Talking Stick method, while the control group students were not taught by using Talking Stick method. The samples were 74 students that were taken from the eight grade students of MTs Annajah Petaling in academic year 2015/2016. The data were obtained through test, observation and documentation. The result of the test was analyzed by using paired sample t-test in SPSS 16 (Statistical Package for Social science).Based on the results analysis, there was a significance different between students who were taught by using Talking Stick method and the students who were not taught by using Talking Stick method. It was known from the result of mean of post-test in the experimental group (67.70) was higher than the mean of post-test in the control group (65.54). In addition, there was a significant difference in vocabulary mastery between students’ who were taught by using Talking Stick method and those who were not. Therefore, Talking Stick method was one of effective factor that could improve students’ vocabulary mastery.

scholarly journals The Use of Testing, Demonstrating, Practicing, and Revising (TDPR) Technique to Improve Students' Ability in Pronouncing Plosive Consonants

2019 ◽  
Vol 5 (1) ◽  
pp. 18
Author(s):  
Rima Rahmaniah
Keyword(s):  
Experimental Research ◽  
Null Hypothesis ◽  
Research Method ◽  
Alternative Hypothesis ◽  
T Test ◽  
Classroom Activities ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental ◽  
The Mean

Testing, Demonstrating, Practicing and Revising (TDPR) technique is a technique which includes testing, demonstrating, practicing and revising activities to know and improve the students’ pronunciation ability. Deriving from the importance of pronunciation, the main purpose of the current study is to investigate the use of Testing, Demonstrating, Practicing and Revising (TDPR) technique to improve the students’ ability in pronouncing plosive consonants. Based on the purpose of the study, a series of classroom activities with TDPR technique was done. In gathering the data, the researcher applied a quasi-experimental research method. Pre-test and post-test were distributed to 72 students of SMKN 1 Praya Tengah. The result of the study has revealed that there was a significant difference between the mean of pre-test and the post-test, t-test 5.10 ˃ t-table 1.994, it means that the null hypothesis (Ho) is rejected meanwhile alternative hypothesis (Ha) is accepted. It proved that the TDPR technique can improve students’ ability in pronouncing plosive consonants.

scholarly journals IMPROVING STUDENTS� VOCABULARY MASTERY THROUGH ELECTRONIC DICTIONARY

2017 ◽  
Vol 2 (2) ◽  
pp. 88
Author(s):  
Sri Yanti
Keyword(s):  
Quantitative Research ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Electronic Dictionary ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental ◽  
The Mean ◽  
Level Of Significance

This research is designed to investigate the use of electronic dictionary in improving students� vocabulary mastery. This quantitative research applied quasi-experimental with nonequivalent control group design by involving 65 second-grader of SMAN 1 Garawangi. There were two instruments used in this research, namely test, consisted of pretest and posttest, and questionnaire. As result, the findings showed that the mean score of experimental class on pretest was 53, and the mean score of experimental class achieved 86 after the treatment. The improvement of students� vocabulary mastery can also be seen from the level of significance (two-tailed) in paired t-test that was less than the alpha (0.000<0.05). It indicated that the null hypothesis was rejected and Ha was accepted which means that there was significant difference of means between pre-test and post-test of experimental class. Besides, most students endorsed ten items of questionnaire involving affective, behavioral, and cognitive aspects which means that most students in experimental class agreed that electronic dictionary can help them in improving their vocabulary mastery. Finally, the researcher concludes that the use of electronic dictionary can improve students� vocabulary mastery.Keywords: electronic dictionary, vocabulary mastery, quasi-experimental, nonequivalent control group

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