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THE ROLE OF PROBLEM-BASED LEARNING TO IMPROVE STUDENTS’ MATHEMATICAL PROBLEM-SOLVING ABILITY AND SELF CONFIDENCE Heris Hendriana; Tri Johanto; Utari Sumarmo
Journal on Mathematics Education Vol 9, No 2 (2018)
Publisher : Department of Doctoral Program on Mathematics Education, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.9.2.5394.291-300

This study is a pre test-post-test experimental control group design having a goal to analyze the role of problem-based learning on students’ mathematical problem-solving ability (MPSA) and self-confidence (MSC). The study involves 66 tenth grade students, a mathematical problem-solving test, a mathematical self-confidence scale, and perception of problem-based learning (PBL) approach scale. The study found that on MPSA, its gain, and on MSC students getting treatment with PBL approach obtained better grade than that of students taught by conventional teaching. The other findings, there was the high association between MPSA and MSC, and student performed positive opinion toward PBL approach.

The Development of Discovery Learning Assisted by Geogebra and Assemblr Edu Application to Increase Juinor High School Students’ Understanding Ability on Geometry Raden Astri Prasetiawati; Wahyu Hidayat; Heris Hendriana
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol 6, No 1 (2023): VOLUME 6 NUMBER 1, MARCH 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i1.15340

Mathematics is a subject that has an important role in human life. The goal of learning mathematics at school is an understanding of mathematical concepts. Students must have an understanding of mathematical concepts after the mathematics learning process takes place. Students who have an understanding of mathematical concepts will be able to explain related concepts and apply them. This study aims to develop a discovery-based method of learning using Geogebra and Assemblr Edu applications to understand geometric concepts in junior high school students. This study uses the Multimedia Development Life Cycle (MDLC) model. Data collection was carried out by means of interviews and questionnaires. Media validation is based on material review experts and media experts. Data analysis technique by conducting qualitative descriptive analysis based on the validation of material experts and media experts. The average percentage score from material experts is 94.7% and the average percentage score from media experts is 95.8% indicating that the development of discovery-based method learning using the Geogebra and Assemblr Edu applications is feasible to use as an alternative solution to understanding geometry concepts in junior high school students. The author suggests that the learning media that has been designed can be tested on class IX junior high school students so that it can be useful for students to understand Geometry material. And in addition, further research can be carried out to determine the effectiveness of the learning media that have been made.

The Development of Microsoft Powerpoint-Assisted Worksheet to Increase Students’ Mathematical Problem Solving Ability Rizky Yuniar; Heris Hendriana; R Kurniawan; Anik Yuliani
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol 6, No 1 (2023): VOLUME 6 NUMBER 1, MARCH 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i1.15344

SMP Al-amin is a private school located in the district of Kandanghaur - Indramayu. The learning resources provided by the Government only provide books for teachers and do not provide worksheet to students. Therefore the researcher wants to make PowerPoint-assisted worksheets to increase enthusiasm, student interest in learning, and student motivation while studying. The purpose of this research is to produce student worksheets assisted by Microsoft PowerPoint. The research method used is research and development (R&D) and the ADDIE learning design. The stages of the ADDIE development model are as follows: analysis, design, development, implementation, and evaluation. The subjects of this study were class VIII students of SMP Al-Amin Kandanghaur. the instruments used were feasibility analysis, student response questionnaires, and teacher response questionnaires. Based on the research findings, the PowerPoint-assisted worksheet was declared "feasible" with a feasibility value of 80%. In addition, the student and teacher response questionnaire rates were 79%, indicating that these PowerPoint-assisted worksheets are "handy". Thus it can be concluded that the use of PowerPoint-assisted WORKSHEET in the two-variable linear equation system (SPLDV) subject can be said to be a safe, practical, and effective learning mediumkeywords.

The Implementation of Google Site-Assisted Differentiation Learning Model to Improve Mathematical Reasoning of Class X Senior High School Ary Wilman Nasution; Heris Hendriana; Rudy Kurniawan; Anik Yuliani
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol 6, No 2 (2023): VOLUME 6 NUMBER 2, JUNE 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i2.17081

Differentiation model learning is an effort to facilitate students' diverse or different backgrounds so that students are able to maximize their abilities. This study aims to improve students' mathematical reasoning using the google site-assisted differentiation learning model. Mathematical reasoning is one that is important for students to master, especially class X. The method in this study was quasi-experimental, with 68 students were participated in this research from SMA PGRI 31 and SMAN 1 Pangalengan. The instruments in this study were 5 questions describing mathematical reasoning. Data were analyzed using SPSS 23 to compare between conventional learning and learning using the google site-assisted differentiation model. The results show that students who have the differentiation model were better than those using conventional learning. This shows that the class using the differentiation learning model has an advantage in reasoning ability. This is because children learn according to their respective abilities because in the differentiation of the teaching provided it is adjusted to the initial ability there is yes ng children need a lot of guidance or Scaffolding, there is a little, there is no guidance so that they are able to maximize the mathematical reasoning that children have. From the results of the study it can be concluded that there is a significant difference between learning using the Google site-assisted differentiation model and conventional learning.

The Implementation of Scientific Approach to Improve Mathematical Understanding Ability on Senior High School Students Helmi Ilham Nabila; Harry Dwi Putra; Heris Hendriana
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol 6, No 2 (2023): VOLUME 6 NUMBER 2, JUNE 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i2.17513

Mathematical understanding ability is a basic ability that must be possessed by every student in understanding the concept of material and applying it in a mathematical symbol and formula. However, the fact is that currently the failure in learning mathematics is due to students' lack of understanding of the concepts in mathematics material. The purpose of this study was to see the improvement of mathematical understanding ability of class VIII-B students on the material of Two-Variable Linear Equation System at SMPN 1 Margaasih. The research method used is the model of Kemmis and McTaggart with the subject studied, namely students of class VIII-B SMPN 1 Margaasih. The research conducted used Classroom Action Research (CAR). The research took place over 2 cycles, each cycle consisting of several stages starting from the plan, action, observation and reflection stages. In cycle I and cycle II the teacher gave a test, besides that in each cycle an observation sheet was provided. The results of this study showed that there was an increase in the completeness of learning scenarios for teachers by 51.92% and for students by 50.01%. In addition, the results of filling out the tests given each cycle showed good results with the number of students who scored above the KKM in cycle I by 69.44% and cycle II by 80.55%, meaning an increase of 11.11%. Thus, the mathematical understanding ability of class VIII students on Two-Variable Linear Equation System material at SMPN 1 Margaasih using a scientific approach has improved.

Analysis of Mathematical Creative Thinking Abilities of High School Students in West Bandung Regency Nindra Giandra Tamirrino; Heris Hendriana; Wahyu Hidayat
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol 6, No 2 (2023): VOLUME 6 NUMBER 2, JUNE 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i2.15580

The rapid development of technology requires creative human resources to solve various mathematical problems. The importance of thinking creatively is contained in the Graduate Competency Standards (SKL). This study aims to determine the mathematical creative thinking skills of high school students in West Bandung using sequence and series materials. The research method used is the descriptive qualitative research method. The study was conducted on 35 class XI students at a high school in West Bandung. The instrument used is four items about the ability to think creatively on the material sequences and series. The research was conducted in the odd semester of the 2022-2023 school year. The results showed that the percentage of flexibility indicator questions was 61.143%, which means most students can work on questions with the flexibility indicator. The rate of fluency indicator items was 52%, the percentage of originality indicator items was 43.169%, and the elaboration indicator was 40%. These results show that the elaboration indicator has the rate percentage compared to other indicators of creative thinking ability. The study’s results concluded that the creative thinking skills of high school students in West Bandung Regency were still low, with a percentage of 49.19%. Researchers recommend using interactive learning media such as e-LKPD to improve mathematical creative thinking abilities.

The Relation Between Self-Confidence and Mathematical Problem Solving Ability on Islamic Junior High School Students Rifa Mar'ah Sholihah; Harry Dwi Putra; Heris Hendriana
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol 6, No 2 (2023): VOLUME 6 NUMBER 2, JUNE 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i2.15373

Mathematics is very important in life. The self-confidence that students have will certainly affect the process of learning mathematics. Learning objectives measure students' self-confidence towards mathematical problem-solving abilities.The aim of the study was to analyze the relationship between self-confidence and the ability to solve mathematical problems and analyze students' difficulties in solving problems on the System of Two Variable Linear Equations (SPLDV) material at Madrasah Tsanawiyah. Research using quantitative methods with correlation tests. The research sample was 20 Madrasah Tsanawiyah students. The research instrument consisted of a test to measure mathematical problem solving abilities in the form of 3 essay questions, while the non-test instrument was the self-confidence consisting of 20 statement items. . The learning method used conventionally students are divided into several groups randomly. School books are given as a guide for students in learning.The results showed that there was a very strong relationship (r = 0.83) between self-confidence and the ability to solve mathematical problems. Conclusion the results of the analysis of students' difficulties were found based on the polya step, especially at the stage of proving that students were not yet able to check the correctness of the solution in the process of working on solving mathematics. It is hoped that future research will use problem solving methods to see how self-confidence increases in the ability to solve mathematical problems.

The Implementation of Scientific Approach to Increase Mathematical Problem Solving Ability on Junior High School Students Siti Nurlelah; Heris Hendriana; Aflich Yusnita Fitrianna
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 6 No. 3 (2023): VOLUME 6 NUMBER 3, SEPTEMBER 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i3.17580

Mathematics is a field of study that plays an important role in the world of education. Mathematics as a science that must be mastered because it supports and is interelated with other subjects. The background of writing this article is the low ability of students to solve mathematical problems. This research was conducted because there are still many teacher centered learning acitivities.To improve the ability to solve the need for an approach model that an be developed to position students as learning centers is the application of scientific models.the scientific approach is an approach aimed at students. In learning activities direct students to be active and understand the concept. This study aims to apply a scientific approach to Dharma Kartini Junior High School students. The research target was class VIII with a 28 students on the subject matter of a two variable linear equation system. The research conducted was classroom action research.Classroom action research trains critical, systematic thinking, starting from planning, implementing, observing and reflecting. This study provided instruments, namely pre-test and post-test in the form of 5 questions of problem solving abilities to students which were carried out in 2 cycles. The research results obtained for the first cycle showed that students mastery of mathematical concepts was still not good. Therefore, proceed to the next stage, namely the second cycle. Based on the implementation of learning in the second cycle, a very significant increase was obtained. Thus it can be concluded that the scientific approach can be applied in learning to improve problem solving abilities in the matter of a system of two variable linear equations.

The Implementation of Scientific Approach to Increase Mathematical Understanding Ability on Junior High School Students Putri Dyan Marini; Heris Hendriana; Aflich Yusnita Fitrianna; Muhammad Afrilianto
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 6 No. 3 (2023): VOLUME 6 NUMBER 3, SEPTEMBER 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i3.17612

This research is motivated by the ability of mathematical understanding of students in Indonesia is still relatively low, students find it difficult to understand abstract mathematical concepts and mathematical understanding is not fully optimized and can be said to be still lacking, this condition is caused by a tendency to memorize and a little introduction to what is useful from the mathematical material studied. The purpose of this study is to implement a scientific approach to students' mathematical comprehension abilities. This research is a Classroom Action Research (PTK) using a spiral model from Kemmis and McTaggart with the stages being plan, action, observation or observation, and reflection for each cycle. The subjects in this study were grade VII students of Nur Al Rahman IT Junior High School for the 2022/2023 academic year with a total of 20 students. The material used is algebraic. The instrument used is a test instrument consisting of 7 mathematical understanding questions. The results of this study stated that students' mathematical understanding increased as evidenced by the increase in the percentage of question achievement indicators after 2 learning cycles. The percentage of cycle I results is low at 49%, while the percentage for cycle II is 81%. Based on the results of the study, the author concludes that implementing a scientific approach is an effort that can be done in the learning process to see or improve students' mathematical understanding.

The Implementation of Scientific Approach to Improve Mathematical Understanding Ability on Junior High School Students Silvi Silvia; Aflich Yusnita Fitrianna; Heris Hendriana
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 6 No. 3 (2023): VOLUME 6 NUMBER 3, SEPTEMBER 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i3.17615

Mathematical understanding ability is a very important skill for students to achieve, because mastering mathematical involves more than just remembering formulas and knowing how to count, understanding concepts is also needed. But in reality, understanding skills are still low, students are still mostly fixated on existing formulas and examples given by the teacher. The purpose of this study was to see the improvement of mathematical understanding ability of VII students on Algebra material at Dharma Kartini Junior High School. This research uses classroom action research (CAR). The method used the spiral model of action research fromÂ Kemmis and McTaggart. The instrument used was a test instrument consisting of 10 questions of algebra material which was prepared based on the mathematical understanding ability of students whose learning used a scientific approach. This research was conducted in 2 cycles, each cycle consists of several stages starting from the planning, action, observation and reflection stages. The results of this study indicate that the aspects of students' mathematical understanding ability have increased as seen from the increasing percentage achievement on the question indicators after 2 learning cycles, namely in cycle I by 48% and cycle II by 78%. It is known that algebra material in class VII students of Dharma Kartini Junior High School can be influenced by the scientific approach with mathematical understanding ability. As more and more students showing understanding they can conclude and explain back what they have learned.

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