scholarly journals Analisis Kemampuan Berpikir Kritis Mahasiswa Dalam Menyelesaikan Permasalahan Bilangan Bulat Berbasis Media Realistik

2019 ◽  
Vol 9 (3) ◽  
pp. 276-283
Author(s):  
Indri Anugraheni
Keyword(s):  
College Students ◽  
Critical Thinking ◽  
Problem Solving ◽  
Student Teachers ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Research Subjects ◽  
Christian University ◽  
Realistic Mathematics ◽  
Mathematical Problems

The purpose of this study is to describe the ability of college students to think critically in solving integer problems using realistic media. This research is a qualitative descriptive study. The research subjects were 47 elementary school student teachers of FKIP Satya Wacana Christian University, who took realistic mathematics courses. The data collection techniques in this study were tests of college students' critical thinking skills in groups. Critical thinking test results are analyzed by describing college students' thinking abilities. The results of the study note that: the students are able to analyze, evaluate and create operations of addition and subtraction of integers by 24.26%; the students are able to analyze, evaluate but still unable to create problem solving with realistic mathematics media by 34.56%; the students are able to analyze but have not been able to evaluate and accelerate problem solving to a maximum of 13.97%; the students have not been in maximum ability  in analyzing mathematical problems and have not been able to evaluate and create problem solving by 27.21%.

scholarly journals THE DEVELOPMENT OF STUDENT WORKSHEETS BASED ON REALISTIC MATHEMATICS EDUCATION TO IMPROVE THE SIXTH GRADE STUDENTSCRITICAL THINKING ABILITY ON THE MATERIAL OF COUNTING FRACTION OPERATIONS

2021 ◽  
Vol 9 (4) ◽  
pp. 769-777
Author(s):  
Mamik Widyawati ◽  
◽  
M. Sulthon Masyhud ◽  
Suparti a ◽  
◽  
...  
Keyword(s):  
Critical Thinking ◽  
Mathematics Education ◽  
Relative Effectiveness ◽  
Thinking Skills ◽  
Development Planning ◽  
Critical Thinking Skills ◽  
Realistic Mathematics Education ◽  
Research Subjects ◽  
Initial Product ◽  
Realistic Mathematics

Mathematics has an important role at every level of education and is a means of solving problems in life. Mathematics will increasingly provide benefits with the support of the ability to think logically-reflective to make rational decisions that are believed to be true. Student worksheets as a learning medium can combine mathematics and critical thinking skills in learning. This study was aimed to produce student worksheets based on realistic mathematics education to improve students critical thinking skills that are valid, practical and effective. The research was conducted by using Borg & Galls R&D design, but only eight steps were taken, in the form of preliminary research, development planning, initial product design development, initial product validation, initial product revision, trial use, product development revision and effectiveness testing product. The research subjects were 58 grade VI students of SDN Sumberagung 01 Jember. The data were collected by using documentation, interview, product validation, and test learning outcomes. After the data were collected, the data were analyzed by using the following techniques: product validation, t-test, and relative effectiveness test. The results of the study stated that the validity of the student worksheet development product showed 93.96% (very worthy), the productivity of the student worksheet product showed 74.71% (practical), the field test results showed that the worksheet product from this study was more effective than with the previous product, and the relative effectiveness level obtained was 62.57% (high effectiveness). Thus, it can be concluded that the product of developing student worksheets based on realistic mathematics education can improve students critical thinking skills on the fraction counting operation material.

scholarly journals ANALISIS KEMAMPUAN BERPIKIR KRITIS MAHASISWA DALAM MEMECAHKAN MASALAH KALKULUS

2019 ◽  
Vol 8 (2) ◽  
pp. 279
Author(s):  
Yunis Sulistyorini ◽  
Siti Napfiah
Keyword(s):  
Critical Thinking ◽  
Problem Solving ◽  
Undergraduate Students ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Mathematical Abilities ◽  
Mathematical Problems ◽  
Problem Solving Process ◽  
Relationship Of ◽  
The Relationship

Berpikir kritis merupakan kemampuan yang dapat dipelajari dan dilatihkan agar mampu memecahkan masalah secara efektif. Penelitian ini bertujuan untuk mendeskripsikan kemampuan berpikir kritis mahasiswa dalam memecahkan masalah kalkulus. Jenis penelitian ini adalah penelitian kualitatif deskriptif. Subjek dari penelitian ini adalah tiga orang mahasiswa program studi Pendidikan Matematika IKIP Budi Utomo Malang yang berkemampuan matematika tinggi. Instrumen yang digunakan yaitu soal pemecahan masalah Kalkulus dan pedoman wawancara. Instrumen dibuat untuk menggali kemampuan berpikir kritis mahasiswa dalam memecahkan masalah. Hasil penelitian menunjukkan bahwa subjek mampu menunjukkan kemampuan berpikir kritis yang tinggi. Hal ini ditunjukkan dengan terpenuhinya seluruh indikator kemampuan berpikir kritis dalam memecahkan masalah matematika yaitu menggunakan penalaran pada tahap memahami masalah, menganalisis keterkaitan masing-masing bagian dari keseluruhan untuk menghasilkan sistem yang kompleks pada tahap membuat perencanaan, menganalisis dan mengevaluasi fakta-fakta pada tahap melaksanakan perencanaan, dan menarik kesimpulan berdasarkan hasil analisis pada tahap memeriksa kembali. Walaupun ketiga subjek memenuhi keseluruhan indikator berpikir kritis, namun masing-masing subjek menunjukkan proses pemecahan masalah yang berbeda. Masalah open-ended dapat dipertimbangkan dalam melatihkan kemampuan berpikir kritis sekaligus mengakomodasi berbagai tingkatan akademik mahasiswa.AbstractCritical thinking is an ability that can be learned and trained to be able to solve problems effectively. This study aims to describe students' critical thinking skills in solving calculus problems. This type of study was descriptive qualitative research. The subjects were three undergraduate students of the IKIP Budi Utomo Malang Mathematics Education with high mathematical abilities. The research instruments were calculus problem solving questions and interview guidelines. The instruments used to explore students' critical thinking skills in solving problems. The results showed that subjects were able to demonstrate high critical thinking skills. This is indicated by the fulfillment of all indicators of critical thinking skills in solving mathematical problems, namely using reasoning at the stage of understanding the problem, analyzing the relationship of each part of the whole to produce a complex system at the stage of devising a plan, analyzing and evaluating the facts at the stage of carrying out the plan, and draw conclusions based on the results of the analysis at the stage of looking back. Although all three subjects fulfill all indicators of critical thinking skills, each subject shows a different problem solving process. Open ended problems can be considered to develop critical thinking skills while accommodating various academic levels of students.

scholarly journals Analysis of Students' Critical Thinking Skills in Solving Mathematics Problems on Pythagoras

2020 ◽  
Vol 1 (2) ◽  
pp. 1-7
Author(s):  
Heinrich Osvaldo Ndahawali ◽  
Sri Hariyani ◽  
Nur Farida
Keyword(s):  
Critical Thinking ◽  
Problem Solving ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Research Subjects ◽  
Descriptive Research ◽  
Mathematics Problems ◽  
Reference Problem ◽  
Math Problems ◽  
Research Type

This study aims to describe the critical thinking skills in solving math problems. The approach used in this research is qualitative research with descriptive research type. The research subjects were 32 students. The six interview subjects were divided into three levels of critical thinking, namely 2 high categories, 2 medium categories and 2 low categories. Data collection procedures are tests of critical thinking skills and interviews. Research data analysis refers to indicators of critical thinking, namely: interpreting, analyzing, evaluating and inferring. Student achievement on each indicator includes: 1) Percentage of students' ability to interpret the completion of the test questions by 65.5%; 2) The percentage of students' ability to analyze the completion of the test questions by 39.1%; 3) The percentage of students' ability to evaluate is 66.6%; and 4) Percentage of students' ability to infer by 40%. The ability of students to interpret a problem solving is good. Students have been able to write out what is known and asked in the problem correctly, but there are students who are less thorough and incomplete in writing the unit of distance. The ability of students to analyze problem solving is quite low. Students do not provide information on drawing illustrations. The ability of students in evaluating problem solving is good. Students are able to do the calculations correctly in accordance with the rubric of assessment. The ability of students to reference problem solving is low. Students are not used to writing the final conclusions of the answers obtained.

scholarly journals Kemampuan Berpikir Kritis Siswa Melalui Penerapan Pendekatan Realistic Mathematics Education Berbantuan Media Manipulatif Origami

2019 ◽  
Vol 4 (8) ◽  
pp. 1084
Author(s):  
Nur Fitri Amalia ◽  
Subanji Subanji ◽  
Sri Untari
Keyword(s):  
Critical Thinking ◽  
Mathematics Education ◽  
Action Research ◽  
Teacher Learning ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Realistic Mathematics Education ◽  
Research Subjects ◽  
Realistic Mathematics ◽  
Classroom Action Research

<p class="Abstrak"><strong>Abstract:</strong> This classroom action research aims to describe the success of the RME approach assisted by origami manipulative media to improve the critical thinking skills of VA class students at SDN 1 Patrang Jember. The study was conducted in two cycles. The research subjects were VA class students. Based on research in the first cycle showed that: (1) learning by teachers reached 89.7% and by students reached 88.5% (2) students' critical thinking skills reached 76.8%. The data in the first cycle have not yet reached the criteria for success of the action, so that improvements are made to the second cycle. In the second cycle showed that (1) teacher learning reached 95.9% and by students reached 93.2%, (2) students' critical thinking skills reached 88.9%. So it can be concluded that the RME approach assisted by origami manipulative media can improve students' critical thinking skills.</p><strong>Abstrak:</strong> Penelitian tindakan kelas ini bertujuan untuk mendeskripsikan keberhasilan pendekatan RME berbantuan media manipulatif origami meningkatkan kemampuan berpikir kritis siswa kelas VA SDN 1 Patrang Jember. Penelitian dilaksanakan dua siklus. Subjek penelitian yaitu siswa kelas VA. Berdasarkan penelitian siklus I menunjukkan bahwa (1) pembelajaran oleh guru mencapai 89,7% dan oleh siswa mencapai 88,5% (2) kemampuan berpikir kritis siswa mencapai 76,8%. Data siklus I tidak mencapai kriteria tindakan yang berhasil, sehingga dilaksanakan perbaikan dalam siklus II. Data siklus II menunjukkan (1) pembelajaran guru mencapai 95,9% dan oleh siswa mencapai 93,2%, (2) kemampuan. berpikir kritis siswa mencapai 88,9%. Dapat disimpulkan bahwa pendekatan RME berbantuan media manipulatif origami mampu meningkatkan kemampuan berpikir kritis siswa.

scholarly journals Penerapan Model Pembelajaran Problem Solving Untuk Meningkatkan Kemampuan Berpikir Kritis Siswa Menyelesaikan Masalah Segi Empat dan Segitiga

2020 ◽  
pp. 1-16
Author(s):  
Nesti Surya Astuti Zebua
Keyword(s):  
Critical Thinking ◽  
Problem Solving ◽  
Thinking Skills ◽  
Learning Model ◽  
Critical Thinking Skills ◽  
Critical Thinking Ability ◽  
Average Value ◽  
Thinking Ability ◽  
Mathematical Problems ◽  
Classical Average

This study aims to determine whether the application of the Problem Solving learning model can improve students' mathematical critical thinking skills. This type of research is Classroom Action Research (CAR). The subjects in this study were students of class VII SMP Yos Yoseph Medan, which consisted of 32 students. The object in this study is the Problem Solving learning model to improve students' critical thinking skills in solving mathematical problems. Based on the analysis of research data, the results obtained are: the initial test of mathematical critical thinking ability of students is still relatively low that is obtained a classical average of 49.84, as many as 8 students who completed 25% with a percentage of 25% while students who did not complete as many as 24 people with 75% percentage. The results of the first cycle test after using the Problem Solving learning model obtained a classical average value of 63.90, 17 students completed with a percentage of 53.12%, while students who did not complete as many as 15 people with a percentage of 46.87%. In the second cycle after making improvements to the learning model Problem Solving obtained an increase in the classical average value of 75.78 students who completed 26 students with a percentage of 81.25% while students who did not complete as many as 6 people with a percentage of 18.75%. So it can be concluded that the Problem Solving learning model that has been applied can improve students' mathematical critical thinking skills. This is supported by the data obtained by the average classical completeness of students' mathematical critical thinking skills obtained by the Problem Solving learning model in cycle II higher than cycle I.

PERBEDAAN PENINGKATAN KETERAMPILAN BERPIKIR KRITIS SISWA PADA MATERI TERMOKIMIA MELALUI PEMBELAJARAN GROUP DAN INDIVIDUAL PROBLEM SOLVING

2017 ◽  
Vol 9 (2) ◽  
pp. 99
Author(s):  
St Fatimah Azzahra
Keyword(s):  
Critical Thinking ◽  
Problem Solving ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Learning Problem ◽  
Group Problem ◽  
Control Group Design ◽  
Group Design ◽  
Group Problem Solving

ABSTRACTThis research is aimed to know the differences increase critical thinking skills through learning group and individual problem solving in thermochemical material. This research uses a quasi-experimental design with nonequivalent control group design and study sample consisted of 103 students, divided into the first experimental (group problem solving) (35 students), the two group experimental (individual problem solving) (34 students). The collected through pretest-posttest. The analyzed with the Kruskal Wallis test, the results showed that the learning problem solving as a group or individually can improve students’ critical thinking skills. Statistical test there are significant differences in the students critical thinking skills thermochemical material between students who received group and individual problem solving. Critical thinking skills improvement with problem solving individual learning higher compared with group learning problem solving.Keywords: problem solving learning, critical thinking skillsABSTRAKPenelitian ini bertujuan untuk mengetahui perbedaan peningkatan keterampilan berpikir kritis siswa melalui pembelajaran group dan individual problem solving pada materi termokimia. Penelitian ini menggunakan metode quasi experimen dengan desain Nonequivalent Control Group Design dan sampel penelitian ini terdiri dari 103 siswa yang terbagi ke dalam kelompok eksperimen pertama (pembelajaran group problem solving) (35 siswa), kelompok eksperimen kedua (pembelajaran individual problem solving) (34 siswa).Pengumpulan data dilakukan melalui pretest-posttest. Data dianalisis dengan uji Kruskal Wallis Test, hasil penelitian menunjukkan bahwa pembelajaran problem solving secara group maupun secara individual dapat meningkatkan keterampilan berpikir kritis siswa. Data uji statistik, terdapat perbedaan yang signifikan keterampilan berpikir kritis siswa pada materi termokimia antara siswa yang mendapat pembelajaran group problem solving dan individual problem solving. Peningkatan keterampilan berpikir kritis dengan pembelajaran individual problem solving lebih tinggi dibandingkan dengan pembelajaran group problem solving.Kata Kunci: Pembelajaran Problem Solving, Keterampilan Berpikir Kritis

scholarly journals The critical thinking dispositions of students around coffee plantation area in solving algebraic problems

2018 ◽  
Vol 7 (2.10) ◽  
pp. 18
Author(s):  
Kurniati Dian ◽  
Zayyadi Moh
Keyword(s):  
Critical Thinking ◽  
Junior High School ◽  
Video Recording ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Research Subjects ◽  
Coffee Plantation ◽  
Thinking Dispositions ◽  
Critical Thinking Dispositions ◽  
Thinking Disposition

The present study aimed at describing the dispositions of students around a coffee plantation in solving algebraic problems, especially those pertaining to fraction and comparison. Critical thinking disposition denotes the initial milestone to developing students’ critical thinking skills. The study investigated four components of critical thinking dispositions, comprising of truth-seeking, open-mindedness, self-confidence, and inquisitiveness. The subjects under investigation were 45 students at the second grade of a junior high school situated around Garahan coffee plantation in Jember district, East Java, Indonesia. The study covered several phases, inter alia, (1) describing problems on Algebra to the students, (2) recording any activities of the research subjects when doing tasks given, (3) analyzing the students’ answer sheets based on four components of critical thinking dispositions, (4) conducting method triangulation projected to confirm the preliminary findings on the students critical thinking dispositions, and (5) determining the students’ critical thinking dispositions based on the results of direct observation, video recording, and interview. The study gained several findings related to the students’ dispositions. First, the students’ tendency in truth-seeking was characterized by their analysis on the problems given on themes regarding coffee. This prevented them from making mistakes as they checked some information, be it known or unknown, as the bases for problem solving. However, not every student was aware of what was unknown about the problem or what was required to solve the problem. Second, their tendency in open-mindedness was evinced by the fact that they were assured of their answer as they related it to their experience in planting coffee. Nevertheless, some students tended to ask their parent when they had to determine the amount of diameter comparison between two logs to be connected. Third, they tended to be confident in solving problems given as they had experienced the activities described in the problem when they assisted their parents in planting coffee, but still some students had yet to be sure of their answers as they lacked the experience in planting coffee. Lastly, they tended to possess sound inquisitiveness concerning various issues pertinent to solving algebraic problems, especially themed on coffee. They acquired the inquisitiveness by observing the actual activity in their environment. Nonetheless, their inquisitiveness could not be generalized to algebraic lessons at school. 

scholarly journals KEMAMPUAN BERPIKIR KRITIS MELALUI PEMBELAJARAN MATEMATIKA DENGAN PROBLEM BASED LEARNING

Eksponen ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 55-66
Author(s):  
Berta Apriza
Keyword(s):  
Critical Thinking ◽  
Mathematics Learning ◽  
Problem Based Learning ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Learning Needs ◽  
The Social ◽  
Learning Programs ◽  
Mathematical Problems ◽  
The One

Education functions to upgrading, forming, character and develop civilization nation. Having the ability to think and actions to effective and creative in the realm of abstract and concrete can be used as self development independently. Students need to armed with critical thinking skills, systematic, logical, creative, and cooperate effectively to obtain, choose, and manage an information. Mathematics learning is directed to develop critical thinking skills and discussed open and objective because mathematics having strong and structure clear and links between the concept of the one with another concept. By analyzing learning needs of mathematics, formulate and designed a learning programs, choose a strategies and evaliated them correctly to get good results. The ability critical thinking is very important in studying new matter and that known way, and learn to ask effectively and reach a conclusion consistent with the facts. Mathematic learning with problem based learning is the concept of better used activity of the student during learning. In accordance with statements from Westwood (2008: 31) stated that PBL: 1) propel oneself directly in learning, 2) prepared students to critical thinking and analytical, 3) give opportunity to students to identify, find and use numerous this approuch in should think, 4) is the learning is very closely related to the real world and motivate students, 5) involving activeness in integrating information and skills of various the discipline, and 6) knowledge and strategy by the possibility of will be maintained and tranferred to the learning situation other, improve the ability to communicate and the social skills needed to cooperation and teamwork. By chance the learning process as an alternative in solving mathematical problems with using the ability critical think an to cultivate the scientific attitude of student.

scholarly journals Beliefs about Critical Thinking among English Teachers in Qasabet Al- Mafraq, Jordan: معتقدات عن التفكير الناقد بين معلمي اللغة الانجليزية في قصبة المفرق، الأردن

2020 ◽  
Vol 4 (8) ◽  
Author(s):  
Zainab Salem Ahmad
Keyword(s):  
Critical Thinking ◽  
Problem Solving ◽  
Role Playing ◽  
English Teachers ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
The North ◽  
Conceptual Maps ◽  
Asking Questions ◽  
Teacher's Knowledge

This study aimed to investigate the relationships between teachers' knowledge, beliefs and activities about critical thinking. . The study followed the descriptive approach. This research was based on a questionnaire designed to investigate English teachers' points of view about critical thinking for primary and secondary schools in Qasabet Al Mafraq which is a city in the north of Jordan The population of the study is 280 female and male teachers distributed through 160 primary and secondary school. The study sample was randomly selected and it represents 46% of all English teachers in Qasbet Al Mafraq. They are 40 male and 88 female teachers during the second semester 2018/2019. The results of the study indicate that most of the teachers know the higher and lower –order of critical thinking skills. Also, they are inclined to use the critical thinking strategy to achieve certain outcomes in the curriculum. According to the teachers' beliefs, they think critical thinking is an important and effective strategy for problem solving and decision making. On one hand, there is a positive correlation between teacher's knowledge, teachers' belief and critical thinking activitie such as role- playing, asking questions, problem- solving, conceptual maps, debate and game playing. But on the other hand, there are no statistically significant differences at (a= 0.05) due to the variables of gender, experience, number of students, and the stage they are teaching. The researcher recommends that more research should be done on the effect of critical thinking on the four skills reading, writing, speaking and listening.

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