Utari Sumarmo
Universitas Pendidikan Indonesia, Bandung

Published : 23 Documents
Articles

Found 23 Documents
Search

Mathematical Understanding and Proving Abilities: Experiment With Undergraduate Student By Using Modified Moore Learning Approach Maya, Rippi; Sumarmo, Utari
Journal on Mathematics Education Vol 2, No 2 (2011)
Publisher : Department of Doctoral Program on Mathematics Education, Sriwijaya University

Show Abstract | Original Source | Check in Google Scholar

Abstract

This paper reports findings of  a  post test experimental control group design conducted to investigate the role of modified Moore learning approach  on improving students’ mathematical understanding and proving abilities. Subject of study were 56 undergradute students of one state university in Bandung, who took advanced abstract algebra course. Instrument of study were a set test of mathematical understanding ability, a set test of mathematical proving ability, and a set of students’ opinion scale on modified Moore learning approach. Data were analyzed by using two path ANOVA. The study found that proof construction process was more difficult than mathematical understanding  task  for all students, and students still posed some difficulties on constructing mathematical proof task.  The study also found there were not differences  between students’  abilities on mathematical understanding and on proving abilities of  the both classes, and both abilities were classified as mediocre. However, in modified Moore learning approach class there were more students who got above average grades on mathematical understanding than those of conventional class. Moreover, students performed positive  opinion toward  modified Moore learning approach. They  were  active in questioning and solving problems, and in explaining their works in front of class as well, while students of conventional teaching prefered to listen to lecturer’s explanation. The study also found that there was no interaction between learning approach and students’ prior mathematics ability on mathematical understanding and proving abilities,  but  there were  quite strong  association between students’ mathematical understanding and proving abilities.Keywords:  modified Moore learning approach, mathematical understanding ability, mathematical proving ability. DOI: http://dx.doi.org/10.22342/jme.2.2.751.231-250
Tingkat Berpikir Kreatif Siswa dalam Menyelesaikan Masalah Matematika Berdasarkan Gaya Kognitif Reflektif dan Impulsif Rahmatina, Siti; Sumarmo, Utari; Johar, Rahmah
Didaktik Matematika Vol 1, No 1 (2014): Jurnal Didaktik Matematika
Publisher : Universitas Syiah Kuala

Show Abstract | Original Source | Check in Google Scholar

Abstract

Abstrak. This study aims to determine the level of students creative thinking in solving math problems. This study is a qualitative verificative research. Subjects numbered 4 people ie students of SMA Negeri 4 Banda Aceh class X. The selection of subjects was based on Matching Familiar Figure Test ( MFFT ) ie 2 students and 2 students reflective impulsive. The data were obtained from the study subjects written response tests of creative thinking math ( TBKM ) and interviews. To test the credibility of the data the researcher doing triangulation. In this study, triangulation was used to compare the triangulation method TBKM TBKM 1 with 2 and interviews. Creative thinking abilities of students can be seen by thinking of creative mathematics achievement indicators. Creative thinking ability of students surveyed as follows, the level of creative thinking on the subject of reflective material up 1 flat is level 4 which meets four indicators of fluency, novelty, flexibility, and elaboration, the level of creative thinking on the subject of reflective material equation 1 is a straight line that is level 4 meet four indicators fluency, novelty, flexibility, and elaboration. Level of creative thinking on the subject of reflective material up 2 flat is level 4 which meets four indicators of fluency, novelty, flexibility, and elaboration, the level of creative thinking on the subject of reflective material 2 is a straight line equation 4 level indicator which meets four fluency, novelty, flexibility, and elaboration. Level of creative thinking on the subject matter up impulsively 1 flat is level 1 which meet the proficiency indicator, the level of creative thinking on the subject matter impulsive equation 1 is a straight line which meets the level 1 two indicators of fluency and elaboration. Level of creative thinking on the subject matter up impulsively 2 flat is level 3 which meets three indicators of fluency, novelty, and elaboration, the level of creative thinking on the subject matter impulsive equation 2 is a straight line that meets two level 1 indicators fluency and elaboration. Keywords: Creative thinking, reflexive and impulsive cognitive style
KEMAMPUAN DAN DISPOSISI BERPIKIR LOGIS, KRITIS, DAN KREATIF MATEMATIK (Eksperimen terhadap Siswa SMA Menggunakan Pembelajaran Berbasis Masalah dan Strategi Think-Talk-Write) Sumarmo, Utari; Hidayat, Wahyu; Zukarnaen, Rafiq; Hamidah, Ms; Sariningsih, Ratna
Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam Vol 17, No 1 (2012): Jurnal Pengajaran MIPA
Publisher : Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia

Show Abstract | Original Source | Check in Google Scholar | Full PDF (392.68 KB)

Abstract

Artikel ini melaporkan temuan dari kelompok desain postest kontrol eksperimental yang dilakukan pada tahun 2011 untuk menyelidiki matematika logis siswa, berpikir kritis, dan kreatif dan disposisi. Studi ini melibatkan 76 siswa dari kelas-11 dari SMA di Cimahi. Penelitian ini menggunakan tiga macam tes dan skala disposisi yaitu: matematika berpikir logis dan tes skala disposisi, tes berpikir kritis matematika dan skala disposisi, dan uji pemikiran matematika kreatif dan skala disposisi. Studi ini menemukan bahwa tidak ada perbedaan kemampuan berpikir logis dan matematis diposition, matematika kemampuan berpikir kritis dan diposition, dan matematika disposisi berpikir kritis siswa diajarkan oleh pembelajaran berbasis masalah dan berpikir-bicara-menulis strategi (PBL-TTW) dan mahasiswa diajarkan dengan mengajar konvensional. Siswa kemampuan berpikir matematis logis diklasifikasikan sebagai media, siswa kemampuan berpikir matematis logis tergolong cukup baik, dalam disposisi siswa umum digolongkan sebagai media. Studi ini juga menemukan bahwa siswa diajarkan oleh ajaran konvensional mencapai nilai yang lebih baik pada kemampuan berpikir kreatif matematika daripada siswa diajarkan oleh PBL-TTW. Namun, mereka yang kemampuan berpikir masih tergolong kurang baik. Temuan penting lainnya adalah tidak ada hubungan antara pemikiran logis matematika dan matematika kemampuan berpikir kritis, berpikir logis antara matematika dan matematika kemampuan berpikir kritis, dan di antara kemampuan berpikir matematis dan disposisi.Kata kunci: kemampuan berpikir logis dan disposisi, kemampuan berpikir kritis dan disposisi, kemampuan berpikir kreatif dan disposisi, belajar berbasis masalah, strategi berpikir-berbicara-menulis
PENGARUH STRATEGI MATHEMATICAL HABITS OF MIND MHM BERBASIS MASALAH TERHADAP KREATIVITAS SISWA Mahmudi, Ali; Sumarmo, Utari
Jurnal Cakrawala Pendidikan No 2 (2011): CAKRAWALA PENDIDIKAN Mei 2011, Th. XXX, Edisi Khusus Dies Natalis UNY
Publisher : LPPMP Universitas Negeri Yogyakarta

Show Abstract | Original Source | Check in Google Scholar | Full PDF (132.517 KB)

Abstract

Abstract: The Effects of the Problem-Based MHM Strategy on the Mathematical Creative Thinking Ability and Perception of Creativity. This paper presents findings from a quasi-experimental study with a static group comparison design by using the problem-based MHM instructional strategy conducted to investigate students? mathematical creative thinking ability (MCTA) and perception of creativity (PoC). The study involved 126 students from two junior high schools of high and middle categories in Yogyakarta. The instruments were a test of Mathematical Prior Ability (MPA), a test of MCTA, and a scale of PoC. The data were analyzed using the two-way ANOVA and Chi-Square test. The study found that the problem-based MHM instructional strategy was able to improve students? MCTA better than the conventional instruction, there was association between MCTA and PoC, there was an interaction between the school category and the instructional category on PoC, and there was no such interaction on MCTA. Keywords: problem-based MHM instructional strategy, mathematical creative thinking ability, perception of creativity
KEMAMPUAN KOMUNIKASI MATEMATIK SERTAKEMAMPUAN DAN DISPOSISI BERPIKIR KRITIS MATEMATIK Hendriana, Heris; Sumarmo, Utari; Rohaeti, Euis Eti
Delta-Pi: Jurnal Matematika dan Pendidikan Matematika Vol 2, No 1 (2013): Periode Bulan April
Publisher : Delta-Pi: Jurnal Matematika dan Pendidikan Matematika

Show Abstract | Original Source | Check in Google Scholar | Full PDF (279.241 KB)

Abstract

This studyis a post test experimental control group design conducted in 2013by using Problem Based Learning (PBL)to investigate students’ mathematical communication,mathematicalcritical thinking abilityand disposition. The study involves 76 students of grade-11 from a senior high school in Cimahi. The study employs three kinds of instrument namely mathematical communication and mathematical critical thinking tests and mathematical critical thinking scale. The study found that the grade of mathematical communication ability of students taught by PBL was classified as fairly good and it was better than the grade of students taught by conventional teaching that classified as medium. However, there was no different grades of mathematical critical thinking ability and of disposition of students in the both classes. The grades of mathematical critical thinking of students were classified as medium, and the grades of mathematical critical thinking disposition of students were classified as fairly good.  The other findings there were not association among mathematical communication,critical thinking abilities and mathematicalcritical thinkingdisposition.
KEMAMPUAN KOMUNIKASI DAN BERPIKIR LOGIS MATEMATIKSERTA KEMANDIRIAN BELAJAR Wahyu, Hidayat; Sumarmo, Utari
Delta-Pi: Jurnal Matematika dan Pendidikan Matematika Vol 2, No 1 (2013): Periode Bulan April
Publisher : Delta-Pi: Jurnal Matematika dan Pendidikan Matematika

Show Abstract | Original Source | Check in Google Scholar | Full PDF (381.701 KB)

Abstract

This paper reports the findings from a postest experimental control group design  conducted in 2011 to investigate students’ mathematical communication and logical thinking abilities and self regulated learning. The study involves 76 students of grade-11 from a senior high school in Cimahi. The study employs three kinds of instrument namely mathematical communication and mathematical logical thinking test and self regulated learning scale. The study found that there was no difference grades of  mathematical communication and mathematical logical thinking abilities and self regulated learningbetween students taught by problem based learning and think-talk-write strategy (PBL-TTW) and students taught by conventional teaching. Students’ mathematical communication and mathematical logical thinking abilies were classified as medium, and self regulated learning of student were classified as fairly good. The other findings were there were not association among mathematical abilities and self regulated learning.
Improving Mathematical Communication Ability and Self Regulation Learning Of Yunior High Students by Using Reciprocal Teaching Qohar, Abdul; Sumarmo, Utari
Journal on Mathematics Education Vol 4, No 1 (2013)
Publisher : Department of Doctoral Program on Mathematics Education, Sriwijaya University

Show Abstract | Original Source | Check in Google Scholar

Abstract

This paper presents the findings from a posttest experiment control group design by using reciprocal teaching, conducted in Indonesia University of Education to investigate students' ability in mathematical communication and self regulated learning.  The subject of the study were 254 of 9th grade students from three junior high schools of the high, medium, and low level in Bojonegoro, East Java.  The instruments of the study were an essay mathematical communication test, and a self-regulated learning scale. The study found that reciprocal teaching took the best role among school cluster and students' prior mathematics ability on students' mathematical communication ability and self-regulated learning as well.  The other finding was there was an interaction between school cluster and teaching approaches, but was no interaction between students' prior mathematics ability and teaching approaches on mathematical communication ability and self-regulated learning. Moreover, there was an association between mathematical communication and self regulated learning.
Development of Student Worksheets to Improve the Ability of Mathematical Problem Posing Putra, Harry Dwi; Herman, Tatang; Sumarmo, Utari
International Journal on Emerging Mathematics Education IJEME, Vol. 1 No. 1, March 2017
Publisher : Universitas Ahmad Dahlan

Show Abstract | Original Source | Check in Google Scholar | Full PDF (538.931 KB)

Abstract

Activities posing and solving a problem are important parts in mathematics, so the problem posing is an activity that was instrumental in mathematical thinking and become an important part in solving the problem. This type of research is research and development that aims to develop student worksheets through scientific approach with what if not strategy. The research method consists of stages: literature study, observation, interviews, development of student worksheets, assessment of two experts, and restricted trial to the eleventh grade students in SMAN 2 Cimahi, SMAN 3 Cimahi, and SMAN 4 Cimahi. Based on the findings, it was concluded that the student worksheets through scientific approach with what if not strategy load some activities including observing, questioning, trying, reasoning, and concluding. The activity of questioning using what if not strategy involves changing data, adding data, changing data with the same question, or changing question with the same data. The student worksheets also presented some contextual problems in accordance with the experience of students. After tested using worksheet, the improvement of student mathematical problem posing in the three schools was in moderate criteria.
THE ROLE OF PROBLEM-BASED LEARNING TO IMPROVE STUDENTS’ MATHEMATICAL PROBLEM-SOLVING ABILITY AND SELF CONFIDENCE Hendriana, Heris; Johanto, Tri; Sumarmo, Utari
Journal on Mathematics Education Vol 9, No 2 (2018)
Publisher : Department of Doctoral Program on Mathematics Education, Sriwijaya University

Show Abstract | Original Source | Check in Google Scholar

Abstract

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.
MATHEMATICAL CONNECTION ABILITY AND SELF-CONFIDENCE (An experiment on Junior High School students through Contextual Teaching and learning with Mathematical Manipulative) Hendriana, Heris; Rahmat Slamet, Ujang; Sumarmo, Utari
International Journal of Education Vol 8, No 1 (2014): December 2014
Publisher : UPI Press

Show Abstract | Original Source | Check in Google Scholar

Abstract

This sudy was intended to examine the role of prior mathematics ability (PMA) and contextual teaching approach with mathematical manipulative (CTL-MM) to the achievement of mathematical connection ability (MCA) and self-confidence (SC) of junior high school students. This study was part of a master thesis, and it was a sub-study of a Postgraduate Research Grant from DGHE in 2013 as well. The study was quasi-experimental with pre-test post-test control group design, involving 67 ninth-grade students from a junior high school in Bandung. The instruments of this study were an essay test on mathematical connection, a self-confidence scale, and a scale on students’ perception toward CTL-MM. The result of the study revealed that CTL-MM was better in improving students’ MCA, N-Gain of MCA, and SC. This was shown by students’ grades of MCA and SC which were better in the group taught by CTL-MM than students’ grades in the group taught by conventional teaching. While their grades of SC were better, the grades of MCTA were at low level. However, there was a moderate correlation between mathematical connection and self-confidence though students demonstrated positive perception toward the  implementation of CTL-MM.