Tri Atmojo Kusmayadi
Prodi Magister Pendidikan Matematika, Pascasarjana, FKIP – UNS

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TINGKAT RESPON BERDASARKAN TAKSONOMI SOLO SISWA KELAS VIII YANG MENGALAMI MISKONSEPSI PADA TOPIK FAKTORISASI SUKU ALJABAR DI SMP NEGERI 5 KARANGANYAR PADA TAHUN PELAJARAN 2013/2014 Mulyatna, Fauzi; Sujadi, Imam; Kusmayadi, Tri Atmojo
Jurnal Pembelajaran Matematika Vol 4, No 1 (2016): Pembelajaran Matematika
Publisher : Jurnal Pembelajaran Matematika

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Abstract: The objectives of this research were to identify and to describe about misconceptions, and to find out the levels of response of VIII grade students of SMP N 5 Karanganyar experiencing misconceptions about factorization of the tribe in algebra based on SOLO taxonomy. This research was categorized as a qualitative research using a case study design which was only focused on one selected and comprehended phenomenon deeply, and neglecting other phenomena. This particular phenomenon was the response level based on SOLO taxonomy of VIII grade students of SMP N 5 Karanganyar experiencing misconceptions about factorization of the tribe in algebra. The subject of this research were VIII grade students of SMP N 5 Karanganyar. The criteria to choose the main subject of the research were that the students had learnt a topic about factorization of the tribe in algebra and the main subject were taken based on test results by using CRI technique and the teacher’s recomendation. The data in this research were in the form of the students’ written answer results in finishing the problem solving test. The result of those written answers became the first data analysis of the researcher. Those first data analysis were in the form of description about misconceptions experienced by the subject and the levels of the subject’s response based on SOLO taxonomy in each problem. Those first data analysis were also used as a guide to do interviews. The interviews were both to clarify the subject’s written answers and to strengthen the data finding of the first data analysis. Then the results of the subject’s written answers and the results of the data analysis from the interview were drew  conclusions. The triangulation technique was used as the validity of the data in the planning of the learning process by using problem solving test which was later clarified by the interview. The results of this research are follows. 1) The misconceptions experienced by the subject: the misconception in the use of the equal sign symbol (=), the subject were mistaken in interpreting the instruction order from left to right and the equals sign symbol (=) was wrongly interpreted as implication (⇒) to show the name which represented value and calculation with different results; the misconception of the substraction in algebra, it was a procedural misconception in the use of distributive rules by neglecting the minus sign; the misconception of the multiplication in algebra, it was a procedural misconception in the use of distributive rules by doing multiplication only in the first set when working with multiplication formula in algebra. 2) The levels of the subject’s response experiencing misconceptions were on the levels of multi-structural, uni-structural and pre-structural level.Keywords: Misconception, response level, SOLO taxonomy
PROSES BERPIKIR SISWA KELAS IX SEKOLAH MENENGAH PERTAMA YANG BERKEMAMPUAN MATEMATIKA TINGGI DALAM MEMECAHKAN MASALAH MATEMATIKA Kusmayadi, Tri Atmojo; Sujadi, Imam; Muhtarom, Muhtarom
Journal of Mathematics and Mathematics Education Vol 1, No 2 (2011): Journal of Mathematics and Mathematics Education
Publisher : Journal of Mathematics and Mathematics Education

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Abstract: This  study  aim  to  describe  the  students’  thinking  process  of  9th  grade  of  Junior High School has a high mathematics capability in solving the mathematics problem based on Polya rule. This  study  is  qualitative  descriptive  research.  The  criteria  of  subject  selection included the students’ has a high mathematics capability and communication fluency both spoken  and  written.  The  data  collection  was  done  using  written  test  and  task-based interview  techniques.  Data  analysis  done  based  on  written  test  data  and  task-based interview techniques data. And then it has been done the method triangulation to get valid subject data.  Finally,  the  result  of  description  thinking  process  as  follows:  students  with  high mathematics  capability,  in  understanding  problem  using  assimilation  thinking  process, make  a  plan  using  assimilation  and  accommodation  thinking  process.  Assimilation thinking process can be identified when the students can mention the prerequisite material, can directly relate the sides kite (BF = FG) and can directly develop problem solving plan. Meanwhile,  accommodation  thinking  process  can  be  seen  when  the  students  drew  an auxiliary  line  from  E  to  the  right  thereby  intersecting  with  CD  line  (the  intersection  was labeled  H  point),  so  devided  trapezoid  AEDG  become  right  triangle  EHG  and  rectangle AEHD. In carrying out a plan and in looking back at the completed solution, the students used assimilation thinking process. Keywords: thinking process, mathematics problem, and problem solving.
THE ECCENTRIC DIGRAPH OF THE CORONA OF $Cn$ WITH $Km$, $Cm$ OR $Pm$ Kuntari, Sri; Kusmayadi, Tri Atmojo
Journal of the Indonesian Mathematical Society Volume 18 Number 2 (October 2012)
Publisher : IndoMS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jims.18.2.117.113-118

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pdf abstractDOI : http://dx.doi.org/10.22342/jims.18.2.117.113-118
AKTIVITAS METAKOGNISI DALAM PEMECAHAN MASALAH MATEMATIKA DITINJAU DARI GENDER SISWA KELAS VII SMP NEGERI 1 NANGGULAN KABUPATEN KULON PROGO Sari, Retno; Kusmayadi, Tri Atmojo; Sujadi, Imam
Jurnal Pembelajaran Matematika Vol 4, No 5 (2016): Pembelajaran Matematika
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Abstract: This research was aimed to decribe metacognition activity of male and female students in mathematics problem solving. This research was a qualitative research which used case study method. The subject of the research was 7th students of SMP Negeri 1 Nanggulan. The subject selection criteria was based on students opinion expressing competency either in spoken and written form. The data was collected using think aloud method where the students were asked to express their ideas and questions loudly in mathematical problem solving processes. Then the time triangulation was run to produce a valid data from the research subject. The data analysis was conducted using Miles and Huberman model. The result of research showed : 1) the metacognition activity of the male students are : a) understanding the problems phase : perform activities related to strategic knowledge; b) devising a plan phase : perform activities associated with knowledge about cognitive tasks; c) carrying out the plan phase : perform activities related to strategic knowledge and associated with knowledge about cognitive tasks; d) looking back phase : perform activities related to knowledge strategy and perform activities associated with self-knowledge. 2) the metacognition activity of the female students are : a) understanding the problems phase: perform activities related to strategic knowledge and perform activity associated with self-knowledge; b) devising a plan phase : perform activity associated with knowledge about cognitive tasks; c) carrying out the plan phase : perform activity related to strategic knowledge and associated with knowledge about cognitive tasks; d) looking back phase: perform activities related to strategic knowledge and  perform activity associated with self-knowledgeKeywords: metacognition, mathematics problem solving, gender 
EKSPERIMENTASI MODEL PEMBELAJARAN KOOPERATIF TIPE TEAM ASSISTED INDIVIDUALIZATION DENGAN PENDEKATAN CONTEXTUAL TEACHING AND LEARNING PADA MATERI POKOK BANGUN RUANG SISI DATAR DITINJAU DARI SIKAP SISWA TERHADAP MATEMATIKA DAN PEMBELAJARAN MATEMATIKA Kusmayadi, Tri Atmojo; Usodo, Budi; Ardianzah, Ferri
Jurnal Pembelajaran Matematika Vol 3, No 9 (2015): Pembelajaran Matematika
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Abstract: The aim of the research was to determine the effect of cooperatif learning models viewed from the attitude of students. The learning model compared were TAI-CTL, TAI and direct instruction. This was quasi-experimental research designed by factorial 3x3. The population was 8th grade students of junior high school even semester academic year 2013/2014 in Magetan regency. The sample was taken by using stratified cluster random sampling. Total sample was 231 students, consisted of 77 students as TAI-CTL class, 78 students as TAI class, and 76 students as direct instruction class. Hypothesis testing was performed using two-way analysis of variance with unequal cells. Based on the results of hypothesis testing, it is concluded that: (1) students learns using TAI-CTL and TAI had better achievement than students learnt using direct instruction, students learnt using TAI-CTL had better achievement than students learnt using TAI  (2) positive attitude students had better achievement than those of neutral and negative attitudestudents, neutral attitude students had better achievement than negative attitude students (3) for TAI-CTL and TAI, students with positive attitude had better achievement than neutral and negative attitude, however neutral attitude students had the same achievement as negative attitude students, for direct instruction, positive attitude students had the same achievement as neutral attitude students, meanwhile positive attitude students had better achievement than negative attitudeand students with neutral attitude had the same achievement as negative attitude students (4) for  positive attitude students, students learnt using TAI-CTL had the same achievement as students learnt using TAI, meanwhile students learnt using TAI-CTL and TAI had better achievement than students learnt using direct instruction, for neutral and negative attitude students, students learnt using TAI-CTL, TAI, and direct instruction had the same achievement.Keywords: TAI-CTL, TAI, Direct Instruction, Attitude 
EKSPERIMENTASI MODEL PEMBELAJARAN KOOPERATIF TIPE GROUP INVESTIGATION DAN PROBING-PROMPTING DENGAN PENDEKATAN SAINTIFIK PADA MATERI OPERASI ALJABAR DITINJAU DARI KECEMASAN BELAJAR MATEMATIKA SISWA KELAS VIII SMP NEGERI DI KABUPATEN KARANGANYAR Kurniasari, Dewi; Kusmayadi, Tri Atmojo; Riyadi, Riyadi
Jurnal Pembelajaran Matematika Vol 4, No 4 (2016): Pembelajaran Matematika
Publisher : Jurnal Pembelajaran Matematika

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Abstract: The objective of this research was to investigate the effect of learning model toward learning achievement in mathematics viewed from the mathematics anxiety. The learning models of this research were cooperative learning model of the GI with Scientific Approach, the cooperative learning model of the Probing-Prompting with Scientific Approach, and classical learning model with Scientific Approach. This was a quasi-experimental study with 3×3 factorical design. The study population was all eighth grade students of state junior high school in Karanganyar District. The sample was taken by using stratified cluster random sampling method. The sample consisted of 280 students with 95 students in the first experimental class, 93 students in the second experimental class, and 92 students in the control class. Instruments used to colled data were mathematics achievement test and the student’s mathematics anxiety questionnaire. The proposed hypotheses of the research were tested by using the two-way analysis of variance with unbalanced cells. The results of the research were as follows: 1) GI cooperative learning model with scientific approach gave better achievement than probing-prompting with scientific approach and classical learning model with scientific approach while probing-prompting and classical learning model with scientific approach gave same achievement, 2) the students with low mathematics anxiety had better achievement than the students with moderate and high mathematics anxiety, and the students with moderate mathematics anxiety had better achievement than the students with high mathematics anxiety, 3) in all categories of student’s mathematics anxiety, GI cooperative learning model with scientific approach, Probing-Prompting cooperative learning model with scientific approach, and classical learning model with scientific approach gave the same learning achievement in mathematics, 4) in the GI cooperative learning model with scientific approach and Probing-Prompting cooperative learning model with scientific approach, the students with low mathematics anxiety had better achievement than the students with moderate and high mathematics anxiety, and the students with moderate mathematics anxiety had better achievement than the students with high mathematics anxiety. In the classical learning model with scientific approach, the students with low mathematics anxiety had better achievement than the students with moderate and high mathematics anxiety, while the students with moderate and high mathematics anxiety had the same achievement.Keywords: Group Investigation (GI), Probing-Prompting, Classical Instruction, Scientific Approach, Mathematics Anxiety, Learning Achievement in Mathematics.
PROSES BERPIKIR REFLEKTIF SISWA SMA DALAM PEMECAHAN MASALAH PADA MATERI TURUNAN FUNGSI DITINJAU DARI EFIKASI DIRI (Studi Kasus pada Siswa Kelas XI IPA SMA Negeri Punung) Genarsih, Tunjung; Kusmayadi, Tri Atmojo; Mardiyana, Mardiyana
Jurnal Pembelajaran Matematika Vol 3, No 7 (2015): Pembelajaran Matematika
Publisher : Jurnal Pembelajaran Matematika

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Abstract: The purpose of this study is to describe the process of reflective thinking in solving the problem of high school students on the material terms of the derivative function viewed from self-efficacy. This research is classified in the qualitative descriptive study with the case study method. The subjects in this study were students of class XI IPA SMAN I Punung Pacitan in the second semester of academic year 2014/2015. The determination of the subject is by using purposive sampling, which is based on high, medium, and low self-efficacy. The research data taken from the test results of student works  and interviews of  students. Test of the credibility of the data is done by time triangulation. The data analysis technique is qualitative descriptive by Miles and Huberman. The results showed that (1) students with high self-efficacy using reflective thinking processes in a) stages of understanding the problem, able to select science, believing the truth, and actively create a consideration of the chosen solution; b) planning phase troubleshooting, make certain considerations, believing the truth, and select science; c) the stage of implementing the plan problem solving, able to explain the problem solving, linking information obtained by the problems encountered, deliberation, aware of the error and correct it, believing the truth; d) phase re-examine, re-examine, capable of linking the knowledge, correcting the error, explaining the final conclusion. (2) students with moderate self-efficacy use reflective thinking process in a) understand the problem, believing the truth, actively make judgments, and able to select science; b) the stage of implementing the plan problem solving, able to explain the solution of the problem, select the science that has been owned, believing the truth of solving the problem (3) students with low self-efficacy only use reflective thinking process in understanding the problem by being active characteristics in making judgments, be sure it is a correct problem-solving solutions.Keywords: reflective thinking, problem solving, mathematics, self-efficacy.
EKSPERIMENTASI MODEL PEMBELAJARAN NUMBERED HEAD TOGETHER (NHT) DAN THINKING ALOUD PAIR PROBLEM SOLVING (TAPPS) DENGAN PENDEKATAN SAINTIFIK PADA MATERI OPERASI ALJABAR DITINJAU DARI ADVERSITY QUOTIENT (AQ) SISWA KELAS VIII SMP NEGERI DI SURAKARTA Hidayat, Edisut Taufik; Kusmayadi, Tri Atmojo; Riyadi, Riyadi
Jurnal Pembelajaran Matematika Vol 4, No 4 (2016): Pembelajaran Matematika
Publisher : Jurnal Pembelajaran Matematika

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Abstract: The objectives of research were to find out: 1) which one is better learning achievement, scientific NHT, scientific TAPPS, or scientific classical, 2) which one is better learning achievement, students with high, medium, or low AQ, 3) in each learning models, which one is better learning achievement, students with high, medium, or low AQ, 4) in each AQ level, which one is better learning achievement, scientific NHT, scientific TAPPS, or scientific classical. This research was the quasi experimental research with 3×3 factorial design. The population of research was all grade VIII students of Junior High School in Surakarta. The samples were chosen by using stratified cluster random sampling. The instruments that used were achievement test and Adversity Quotient (AQ) questionare. The proposed hypothesis of the research were tested by using the unbalanced two-way ANOVA. The results of this research were as follows. 1) Scientific NHT had better learning achievement than scientific TAPPS and scientific classical, while scientific TAPPS had better learning achievement than scientific classical. 2) The students with high AQ had better learning achievement than medium and low AQ, while the students with medium AQ had better learning achievement than low AQ. 3) In scientific NHT, the students with high, medium, and low AQ had the same learning achievement. In scientific TAPPS, the students with high AQ had better learning achievement than medium AQ, while the students with high and medium AQ had better learning achievement than low AQ. In scientific classical, the students with high AQ had better learning achievement than medium and low AQ, while the students with medium AQ had better learning achievement than low AQ. 4) At the students with high AQ, scientific NHT and scientific classical had the same learning achievement with scientific TAPPS, while scientific NHT had better learning achievement than scientific classical. At the students with medium AQ, scientific NHT had the same learning achievement with scientific TAPPS, while scientific NHT and scientific TAPPS had better learning achievement than scientific classical. At the student with low AQ, scientific NHT had better learning achievement than scientific TAPPS and scientific classical, while scientific TAPPS had the same learning achievement with scientific classical.Keywords: scientific NHT, scientific TAPPS, scientific classical, Adversity Quotient (AQ), Achievement
PROSES BERPIKIR KREATIF SISWA DALAM PEMECAHAN MASALAH MATEMATIKA DITINJAU DARI KEMAMPUAN MATEMATIKAPADA SISWA KELAS X MIA SMAN 6 SURAKARTA Wulantina, Endah; Kusmayadi, Tri Atmojo; Riyadi, Riyadi
Jurnal Pembelajaran Matematika Vol 3, No 6 (2015): Pembelajaran Matematika
Publisher : Jurnal Pembelajaran Matematika

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Abstract: The research aims to describe the students’ creative thinking process of tenth grade of MIA of SMAN 6 Surakarta in solving mathematics problems towards students who have high, medium and low ability in mathematics. The researcher choosed qualitative research in case study design. The results showed that 1). Students’ creative thinking process in the tenth grade of MIA of SMAN 6 Surakarta with high ability in Mathematics are (a) Preparation, the students identify the prior knowledge about the assignment carefully than the students select the information in solving the problem appropriately; (b) Incubation, the students turn silent when they are thinking about how to solve the problem, the students memorize the way to solve the problem; (c) Illumination, the students continue the first idea which is found before; (d) Verification, the students recheck the problem solving before taking the conclusion, the students test the result by suiting to the data from the assignment. 2) The students’ creative thinking process in the tenth grade of MIA of SMAN 6 Surakarta with medium ability in Mathematics are (a) preparation, the students identify well the problem which is being asked select the information appropriately but they need some stimulus from another person; (b) Incubation, the students turn silent when they are thinking about how to solve the problem, the students memorized the way to solve the problem; (c) Illumination, the students only focus on the relevant information and could not explore the idea to find out the idea, here students also need the stimulus from another person; (d) verification, the students recheck the result before taking conclusion; 3) the students’ creative thinking process in the tenth grade of MIA of SMAN 6 Surakarta with low ability in Mathematics are: (a) Preparation, the students identify well the problem which is being asked, the students select the information recursively by comprehending the assignment. They also still need the stimulus in the form of question; (b) Incubation, the students memorize the appropriate pattern to solve the problem but sometimes they hesitate so they ask the problem to the researcher; (c) Illumination, the students solve the problem from what they already learnt from the previous way, the students focus on the relevant information and tent to avoid the complex information so that the student could not explore the idea to find out another idea, they tent to solve the problem with one idea; (d) Verification, the students recheck the result before taking conclusion but there are many corrections in the final answer.Keywords: Ability in Mathematics,  Creative Thinking Process, Mathematics Problem Solving.
EKSPERIMENTASI MODEL PROBLEM BASED LEARNING (PBL) DENGAN WRITING ACTIVITIES DAN MODEL CREATIVE PROBLEM SOLVING (CPS) PADA MATERI BARISAN DAN DERET DITINJAU DARI KREATIVITAS BELAJAR MATEMATIKA SISWA KELAS X SMK SE-KOTA TEGAL TAHUN AJARAN 2014/2015 Yuliana, Tri; Kusmayadi, Tri Atmojo; Sujadi, Imam
Jurnal Pembelajaran Matematika Vol 4, No 3 (2016): Pembelajaran Matematika
Publisher : Jurnal Pembelajaran Matematika

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Abstract: Problem solving ability was main objective in this mathematic’s learning. So this research intends to know the students’ achievement of mathematics which was better (1) students were taught by Problem Based Learning (PBL) with Writing Activities (WA), students were taught by Creative Problem Solving (CPS) or students were taught by Direct Learning, (2) students with high creativity, students with medium creativity, or srudents with low creativity, (3) in each category creativities, the students’ achievement of mathematics was better among the students were learnt by PBL with WA, CPS or direct learning models (4) in each model, the students’ achievement of mathematics was better among the students with high creativity, students with medium creativity, students with low creativity. This research used a quasi-experimental research with the population of tenth grade of High Schools in Tegal city in the Academic Year of 2014/2015. The sampling technique used stratified cluster random sampling and three schools were selected namely SMK N 1 Tegal, SMK N 2 Tegal, and SMK N 3 Tegal. Two-way variance’ analysis was used to test the hypothesis, followed by Scheffe’ technique.  The results of analysis  were as follows. (1) The students’ achievement by PBL with WA were better than by CPS and direct learning. The students’ achievement by CPS were better than by direct learning. (2) The students’ achievement with high creativities were better than with medium and low creativity. The students’ achievement with medium creativity were better than with low creativity. (3) In every category of creativities (high, medium and low), the students’ achievement by PBL with writing activities were better than CPS and direct learning. The students’ achievement by CPS were better than direct learning. (4) In every model of learnings (PBL with WA, CPS, and direct learning), the students’ achievement with high creativity were better than medium creativity and low creativity. The students’achievement with medium creativity were better than with low creativity.Keywords: Problem Based Learning with Writing Activities, Creative Problem Solving, Creativities, achievement of mathematics.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Aziz Abdul Ghofur Abdul Razak Agus Darmawan Ambar Nurhayati Anggrahini Anggrahini Arianti Puspita Dewi Arinta Rara Kirana Asip Cakra Buana, Asip Cakra Atik Fitriya N author Ari Suningsih Budi Usodo Desi Gita Andriani Dewi Kurniasari, Dewi Dian N Safitri Dian Panji Wicaksono Dwi A, Yuridis Madyarsa Dwi Yuni Pramugarini Eli Widoyo Retno Endah Wulantina, Endah Farah Umami Farida Nurhasanah Fatmawati, Ulya Fauzi Mulyatna Ferri Ardianzah, Ferri Fida Rahmantika Hadi, Fida Rahmantika Fina Hanifa Hidayati Fitriana, Laila Frasetyana, Anita Diah Gatut Iswahyudi Habib Ratu Perwira Negara Hafidh Jauhari Hendriyanto, Agus Hidayat, Edisut Taufik Iim Marfuah Ika Wulandari Imam Sujadi Indra Kurniawan Irma Ayuwanti Juitaning Mustika Juliana Nasution KOMARUDIN Labiba Zahra, Labiba Linda Sunarya Lingga Nico Pradana Maarten Dolk, Maarten Mardiyana Mardiyana MIFTACHUL ANAS Mishbahul Huda, Mishbahul Muhtarom Nanndo Yannuansa, Nanndo Naraswari, Titania Putri Nelly Indriastuti P Nina Nurmasari Nindia Elisie Anggraini Nunung Juwariah, Nunung Nur Anida Laila Nurmalitasari Nurmalitasari Nurul Hidayati Shaliha, Nurul Hidayati Ony Syaiful Rizal, Ony Syaiful Puput Suriyah Putri, Saskia Rizkiana Rahayu Sri W Retno Sari Riyadi Riyadi Rosa Rosdiana Retno H Sahara, Sani Sri Indayani, Sri Sri Kuntari Sukowiyono Sukowiyono Supriyatin Supriyatin Susmono Susmono Suyono Suyono Tanti Listiani, Tanti Tri Yuliana Tunjung Genarsih, Tunjung Ummi Rosyidah, Ummi Wahyu Astuti Budi Wahyu Nofiansyah, Wahyu Wahyumiarti Wahyumiarti, Wahyumiarti Widi Lestari Winarno, Bowo Yekti Putri Kusumaningtyas Zara Mertiana RZ