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Showing papers in "Unnes Journal of Mathematics Education Research in 2013"


Journal Article
TL;DR: In this article, the authors describe about mathematics communication in RME setting of junior school student in Semarang City, Java, Indonesia using data obtained from the student's work in solving contextual problems on the subject of the ratio and the system of linear equations with two variables.
Abstract: Purpose of this research is to describe about mathematics communication in RME setting of junior school student. Subject of the research were grade 8 students in Semarang City. Data obtained from the student’s work in solving contextual problems on the subject of the Ratio and the subject of System of Linear Equations with Two Variables. The student’s work is categorized into 5 levels (the lowest level (0) to the highest level (IV)). For leveling researchers developed a scoring rubric with reference to the communication of mathematics quantitative criteria for scoring mathematical communication. Data were analyzed descriptivelyquantitative. The work of students was also analyzed qualitatively by referring to Qualitative Analytic Scoring Procedure for communication of mathematics. The results can be expressed are: for subject ratio: 78% level I, level II, 15%, 5% level III, level IV 2%. As for the subject of Systems of Linear Equations with Two Variables: level I: 67%, level II: 18%, level III: 8%, level IV: 7%. Both of subject in level V were not achieved.

16 citations


Journal Article
TL;DR: In this paper, Fikri Bawen et al. found out the pattern of students' responses levels in doing problem solving items based on SOLO taxonomy and to find out the students' obstacles in doing mathematical problem-solving items.
Abstract: Salah satu kerangka yang digunakan sebagai rujukan menganalisis respon siswa yaitu taksonomi SOLO. Tujuan penelitian adalah (1) menemukan pola tingkat respon siswa dalam menyelesaikan soal pemecahan masalah berdasarkan taksonomi SOLO dan (2) menemukan hambatan siswa dalam menyelesaikan soal pemecahan masalah matematika. Metode penelitian ini yaitu pendekatan kualitatif. Sumber data penelitian ini adalah 24 siswa putri dan 18 siswa putra kelas VIII SMP IT Darul Fikri Bawen. Hasil penelitian ini adalah respon siswa putri pada level prestructural sebanyak 25, 42% , unistructural sebanyak 10, 83%, multistructural sebanyak 32, 92%, relational sebanyak 20, 83% dan extended abstract sebanyak 10%. Untuk hasil respon siswa putra pada level prestructural sebanyak 16, 67%, unistructural sebanyak 9, 44%, multistructural sebanyak 32, 22%, relational sebanyak 38, 33% dan extended abstract sebanyak 3, 33 %. Rekomendasi dari penelitian ini yaitu guru perlu memberi banyak latihan keterampilan memahami masalah, mengaplikasikan rumus, dan meninjau kembali jawaban. One of frameworks used as a reference to analyze students’ responses is SOLO taxonomy. The purposes of the study were to find out the pattern of students’ responses levels in doing problem solving items based on SOLO taxonomy and to find out the students’ obstacles in doing mathematical problem solving items. The research method used in this study was a qualitative research. The data sources of this study were 24 female students and 18 male students of the eight grade of SMP IT Darul Fikri Bawen. The results of the study showed that for female students, 25,42% of them belonged to prestructural level, 10,83% of them belonged to unistructural response level, 32,92 % of them belonged to multistructural response level, 20,83% of them belonged to relational response level, and 10% of them belonged to extended abstract response level. Meanwhile, for male students, 16,67% of them belonged to prestructural response level, 9,44% of them belonged to unistructural response level, 32,22 % of them belonged to multistructural response level, 38,33% of them belonged to relational response level, and 3,33% of them belonged to extended abstract response level. The recommendations of this study are to give more exercises in understanding the problem.

11 citations


Journal Article
TL;DR: In this article, the authors developed a 4-D model to improve the communication skills of students in the mathematical rectangle material class VII, which was tested by TKKM student t test, z proportions, and regression.
Abstract: Tujuan penelitian ini adalah mengembangkan perangkat pembelajaran matematika dengan strategi REACT berbasis etnomatematika yang valid, praktis dan efektif. Perangkat dikembangkan dengan model 4-D untuk meningkatkan kemampuan komunikasi matematis siswa pada materi segiempat kelas VII. Data TKKM siswa diolah dengan uji t, proporsi z, dan regresi..Hasil pengembangan perangkat: (1) rata-rata silabus 4,54; RPP 4,48; buku siswa 4,40; LKS 4,36; dan TKKM 4,14; (2) praktis, karena rata-rata hasil pengamatan kemampuan guru mengelola pembelajaran baik yakni 4,3 dan angket respon siswa baik/positip yakni 4,6 (3) efektif, rata-rata kemampuan komunikasi matematis kelas eksperimen 7,67 dan banyak siswa mencapai KKM 92,59%, Rata-rata kelas eksperimen 7,67 lebih baik dari rata-rata kelas kontrol 6,71, terdapat pengaruh positip kemandirian siswa dan keterampilan komunikasi matematis terhadap kemampuan komunikasi matematis sebesar 91,4%. Berdasarkan hasil validasi dan hasil uji coba diperoleh perangkat yang valid dan hasil uji coba diperoleh pembelajaran yang efektif, maka tujuan pengembangan perangkat tercapai. The purpose of this study is to develop the learning of mathematics with REACT strategy based etnomatematika valid, practical and effective. The device was developed with 4-D models to improve the communication skills of students in the mathematical rectangle material class VII. Data processed by TKKM student t test, z proportions, and regression. The results of software development: (1) an average of 4,54 syllabus; RPP 4,48; book 4,40 students; LKS 4,36, and TKKM 4,14, (2) practical, because the average teacher observations ability to manage both the learning and student questionnaire responses 4.3 good / positive 4,6 (3) effectively, the average communication skills class mathematical and experimental 7.67 KKM many students reach 92,59%, average grade of 7.67 experiment better than the control class average 6.71, there is a positive effect of students independence and mathematical communication skills to mathematical communication skills by 91,4%. Based on the results of the validation and the test results obtained are valid and the test results obtained for effective learning, the goal of software development is reached.

8 citations


Journal Article
TL;DR: In this article, perangkat pembelajaran matematika dengan strategi MASTER and penerapan scaffolding ying valid, praktis, and efektif.
Abstract: Penelitian ini bertujuan mengembangkan perangkat pembelajaran matematika dengan strategi MASTER dan penerapan scaffolding yang valid, praktis dan efektif. Perangkat dikembangkan dengan model 4-D untuk meningkatkan kemampuan pemecahan masalah siswa pada materi bangun ruang sisi datar kelas VIII. Data tes TKPM siswa diolah dengan uji t, proporsi z, dan regresi..Hasil pengembangan perangkat: (1) rata-rata silabus 4,13; RPP 4,11; buku siswa 4,07; LKS 4,14; dan TKPM 4,14; (2) praktis, dimana rerata hasil pengamatan kemampuan guru mengelola pembelajaran adalah baik yakni 4,08, 92,12% siswa memberikan respon positif, dan rerata respon guru 3,67 (3).efektif, di mana rata-rata TKPM siswa kelompok eksperimen 82,74 dengan banyak siswa yang mencapai KKM 82,75% sedangkan rata-rata TKPM siswa kelompok kontrol 65,33 dengan banyak siswa yang mencapai KKM 32,14%. Terdapat pengaruh kemandirian belajar dan keterampilan pemecahan masalah siswa terhadap kemampuan pemecahan masalah siswa sebesar 78,5%. Berdasarkan hasil validasi dan hasil uji coba diperoleh perangkat yang valid dan hasil uji coba diperoleh pembelajaran yang efektif, maka tujuan pengembangan perangkat tercapai. Pelitian ini bertujuan mengembangkan perangkat pembelajaran matematika dengan strategi MASTER dan penerapan scaffolding yang valid, praktis dan efektif. Perangkat dikembangkan dengan model 4-D untuk meningkatkan kemampuan pemecahan masalah siswa pada materi bangun ruang sisi datar kelas VIII. Data tes TKPM siswa diolah dengan uji t, proporsi z, dan regresi..Hasil pengembangan perangkat: (1) rata-rata silabus 4,13; RPP 4,11; buku siswa 4,07; LKS 4,14; dan TKPM 4,14; (2) praktis, dimana rerata hasil pengamatan kemampuan guru mengelola pembelajaran adalah baik yakni 4,08, 92,12% siswa memberikan respon positif, dan rerata respon guru 3,67 (3).efektif, di mana rata-rata TKPM siswa kelompok eksperimen 82,74 dengan banyak siswa yang mencapai KKM 82,75% sedangkan rata-rata TKPM siswa kelompok kontrol 65,33 dengan banyak siswa yang mencapai KKM 32,14%. Terdapat pengaruh kemandirian belajar dan keterampilan pemecahan masalah siswa terhadap kemampuan pemecahan masalah siswa sebesar 78,5%. Berdasarkan hasil validasi dan hasil uji coba diperoleh perangkat yang valid dan hasil uji coba diperoleh pembelajaran yang efektif, maka tujuan pengembangan perangkat tercapai.AbstractThe purpose of this study was to develop the learning of mathematics with strategies MASTER and scaffolding application that valid, practical and effective. The device was developed with 4-D models to improve students’ problem-solving ability on the flat side of geometrical space grade VIII. Problem-solving test data processed by t test, the proportion of z, and regression. The development of learning outcomes as follows: (1) the average value of 4.13 validation syllabus; lesson plan 4.11; students book 4.07; student worksheet 4.14, and problem-solving test 4.14, (2) practice where score of teaching competence of teacher 4,08, positive student’ response 92,12% and average of teacher response of learning was 3,76, (3) effective where the average of problem-solving ability test of experimental group students got 82.74 with many students who achieve minimum competence 82.75 % while the average control group students got 65.33 with many students who achieve minimum competence 32.14%. There is the influence of independent learning and problem-solving skills of students to the problem solving abilities of students at 78.5%. Based on the validation results, the devince are valid and the test results showed effective learning, therefore, the goal of software development is achieved.

7 citations


Journal Article
TL;DR: In this paper, a modified model of Thiagarajan was used to generate a valid learning tool and the implementation of an effective learning device, and the results showed that: (1) a device developed has been declared valid by the validator with an average score of 4.18 for the syllabus, 4.24 for RPP,4.35 for LKS, 4,37 for Buku Siswa, and 4.37 for the Student Book, and (2) test devices produce (a) mastery of problem-solving ability of students eligible
Abstract: Penelitian ini bertujuan: (1) menghasilkan perangkat pembelajaran yang valid dan (2) pembelajarannya efektif. Pengembangan perangkat pembelajaran menggunakan model Thiagarajan yang dimodifikasi menjadi 3D (define, design, develop). Data dianalisis dengan deskriptif, uji ketuntasan belajar menggunakan uji t, uji proporsi z, uji regresi, dan uji normalitas gain. Hasil penelitian menunjukkan bahwa: (1) perangkat yang dikembangkan telah dinyatakan valid oleh validator dengan skor rata-rata 4,18 untuk silabus, 4,24 untuk RPP, 4,35 untuk LKS, 4,37 untuk Buku Siswa, dan (2) uji coba perangkat menghasilkan (a) pembelajaran tuntas dengan rata-rata 77,58 (lebih dari 75), (b) rasa ingin tahu dan keterampilan pemecahan masalah berpengaruh positif sebesar 63,7% terhadap kemampuan pemecahan masalah dengan persamaan Y = -11,120 + 0,988X1 + 0,941X2 (c) peningkatan rasa ingin tahu dari 4 sampel terpilih berkisar antara 0,33 sampai 0,58 dan keterampilan pemecahan masalah berkisar antara 0,31 sampai 0,41 termasuk dalam kategori sedang (d) proses pembelajaran berdampak pada pembentukan pendidikan karakter dan pemecahan masalah meliputi perhatian, memori, proses berpikir, dan respons. This study aims to: (1) generate a valid learning tool and (2) the implementation of an effective learning device. Development of learning tools using a modified model of Thiagarajan. Techniques of data analysis with descriptive analysis, test mastery learning using t-test, z proportions, regression testing, and test for normality gain. The results showed that: (1) a device developed has been declared valid by the validator with an average score of 4.18 for the syllabus, 4.24 for RPP, 4.35 for LKS, 4.37 for the Student Book, and (2) test devices produce (a) mastery of problem-solving ability of students eligible 75,00 statistically complete with average 77.58 (b) curiosity and problem solving skills positively by 63.7% of the problem-solving abilities with equation Y = -11.120 + 0.988X1 + 0.941X2 (c) increase the curiosity of 4 selected samples ranged from 0.33 to 0.58 and problem solving skills ranged from 0.31 to 0.41 are included in the medium category (d) affect the learning process of the formation of character education and problem solving include attention, memory, thinking processes, and response.

3 citations


Journal Article
TL;DR: In this article, the implementation of NHT learning cooperative and assisted computer program is the increasing of result learn, motivation, and student activity, which can improve the result learn the Numeric Method.
Abstract: Dalam penelitian ini program komputer yang digunakan dalam pembelajaran di kelas adalah aplikasi Maple. Pembelajaran ini menggunakan bahasa pengantar bilingual, bahasa Indonesia dan bahasa Inggris. Penerapan pembelajaran kooperatif NHT dan berbantuan program komputer ini adalah meningkatnya hasil belajar, motivasi, dan keaktifan mahasiswa Penelitian ini dilaksanakan di rombel Metode Numerik Program Studi Pendidikan Matematika Jurusan Matematika FMIPA Unnes semester genap tahun akademik 2010/2011. Jenis penelitiannya adalah Penelitian Tindakan Kelas (PTK). Subjek penelitian terdiri 33 mahasiswa. Dari penelitian ini diperoleh hasil: (1) Mahasiswa tertarik dan terlibat aktif dalam belajar kelompok yang dilanjutkan dengan praktik komputer. Dengan menggunakan Lembar Kerja Kelompok ternyata dapat meningkatkan aktivitas mahasiswa. (2) Implementasi pembelajaran kooperatif NHT dengan aplikasi Maple dapat meningkatkan hasil belajar Metode Numerik. Hal ini dapat diketahui dari hasil tes pada Siklus III yakni dari 23 mahasiswa sebanyak 2 (6,1%) mahasiswa mendapatkan nilai kurang dari 60, dan 4 (12,1%) mahasiswa mendapat nilai 60 sampai dengan 75, serta 27 (81,8%) mahasiswa mendapatkan nilai di atas 75; dan (3) Dengan pembelajaran kooperatif NHT dengan aplikasi Maple, motivasi mahasiswa meningkat dan mereka terstimulasi untuk menyelesaikan soal-soal dengan program komputer yang lain. In this research is computer program used is Maple application and use instruction bilingual, Indonesian and English. Applying of NHT learning cooperative and assisted computer program is the increasing of result learn, motivation, and student activity. This research is executed in class Numeric Method Program Study of Education Mathematics of Department Mathematics of FMIPA Unnes even semester 2010/2011. Its research type is Class Action Research (CAR). Subject research composed by 33 student. From this research is obtained result: (1) Student interested and involved active in learning group continued by practice computer. By using Spread Sheet Group can improve the student activity; (2) Implementation of NHT learning cooperative with Maple application can improve the result learn the Numeric Method. This is knowable from result test at Cycle III namely from 23 student as much 2 (6,1%) student get the value less than 60, and 4 (12,1%) student get the value 60 up to 75, and also 27 (81,8%) student get the above value 75; and (3) The NHT learning cooperative with Maple application, motivation the student mount and they is motivated to finish the problem with the other computer program.

2 citations



Journal Article
TL;DR: In this paper, a 4-D Thiagarajan model was used to develop a lesson material containing character education with constructivism approach valid and practical, and learning by using that lesson material effective.
Abstract: Abstrak Penelitian ini merupakan penelitian pengembangan bahan ajar yang dilakukan dengan menggunakan model 4-D Thiagarajan. Masalah yang perlu dipecahkan dalam penelitian ini, yaitu: (a) apakah hasil pengembangan bahan ajar matematika bermuatan pendidikan karakter dengan pendekatan konstruktivisme itu valid dan praktis, dan (b) apakah pembelajaran menggunakan bahan ajar tersebut efektif. Teknik pengumpulan data dalam penelitian ini adalah menggunakan lembar validasi bahan ajar, lembar pengamatan aktivitas siswa, angket respon guru dan siswa, dan instrumen tes untuk mengetahui prestasi belajar siswa. Adapun teknik analisis data dengan analisis diskriptif untuk uji validasi, lembar pengamatan, dan angket dan uji banding serta analisis regresi untuk uji efektif. Bahan ajar yang dihasilkan adalah valid karena telah divalidasi dengan rata-rata skor 3,54. Bahan ajar yang dihasilkan praktis karena mendapat respon positif dari siswa dan guru. Pembelajaran menggunakan bahan ajar yang dikembangkan efektif, karena hasil prestasi belajar siswa tuntas secara individu (KKM 75) dan klasikal dengan ketuntasan 75%, pengaruh aktivitas terhadap kemampuan pemahaman konsep cukup tinggi yaitu 73,3%, dan prestasi belajar siswa kelas eksperimen lebih baik dari kelas kontrol. Abstract This research is the development of mathematics material that is done by using 4-D Thiagarajan model. Problem that needs to be solved in this research, which is: (a) is the result of developing lesson material containing character education with constructivism approach valid and practical, and (b) is learning by using that lesson material effective. The technique of collecting data in this research is using validation sheet of the lesson material, observation sheet of student’s activities, the questionnaires of teachers and students responses, and test instrumen to know the students’ learning achievement. The technique of analyzing data is using descriptive analyzes for validation test, observation sheets, and questionnaire. Comparative test and regression analysis is for effectiveness test. The resulted lesson material is valid because it has been validated with the average score 3.54, the resulted lesson material is practical because it got positive response from both teachers and students. Learning using the developed material is effective because the students result completely passes the minimum criteria both individually (75) or classically (75%), activity influence to concepts understanding ability high enough which is 73,3%, and students` learning achievement of experiment class better than control class.

1 citations


Journal Article
TL;DR: In this article, a learning of learning device by a modified model of Thiagarajan, which comprises phases of define, design and develop was presented. And the validation of each learning equipments can be categorized as valid.
Abstract: Abstrak Tujuan penelitian ini untuk mengembangkan perangkat pembelajaran matematika yang valid, praktis, dan efektif dengan metode Reciprocal Teaching berbantuan Cabri pada materi Geometri. Penelitian ini merupakan penelitian pengembangan den-gan memodifikasi model dari Thiagarajan, yang terdiri dari tahap design, define dan develop. Perangkat yang dikembangkan adalah silabus, RPP, Lembar Kerja Peserta Didik (LKPD), Lembar Tugas Peserta Didik (LTPD), dan Tes Kemampuan Ko-munikasi Matematis (TKKM), dan instrument penelitian. Hasil validasi dari setiap perangkat pembelajaran adalah valid. Respon positif juga ditunjukkan oleh para siswa dan guru selama pembelajaran, sehingga perangkat dikategorikan praktis. Rata-rata kemampuan komunikasi kelas yang diajar dengan pendekatan Reciprocal Teaching (eksperimen) secara signifikan lebih dari KKM yaitu 75. Rata-rata kemam-puan komunikasi kelas uji coba secara signifikan lebih baik dari kelas eksposito-ri (control). Variabel keterampilan proses, dan sikap bersama-sama berpengaruh terhadap kemampuan komunikasi peserta didik. Maka dapat disimpulkan bahwa belajar berjalan efektif. Abstract The purpose of this research is to formulate mathematics learning with which is valid, practi-cal, and effective with reciprocal teaching method receive aid cabri on geometry materials. The research is a learning of development device by a modified model of Thiagarajan, which comprises phases of define, design and develop. The developed equipments are syllabus, les-son plan, student worksheet, students task worksheet, and communication math test. The validation of each learning equipments can be categorized as valid. The positive response is also shown by the students and teacher during the learning, this means the devices are practi-cal to use. The average of communication math skill on class taught by reciprocal teaching (experiment class) is significantly is higher than the minimum mastery learning criteria which is 75. The average of communication math skill on experiment class significantly is higher than the class taught by expositoric (control). The students’ activeness and skill process vari-ables together influence towards learning result of students. Then it can be concluded that the learning is effective.

1 citations


Journal Article
TL;DR: In this paper, Tujuan penelitian et al. developed teaching equipment consisting of syllabus, lesson-plan, student's book, student worksheets, CD Learning and MCCT.
Abstract: Abstrak Tujuan penelitian ini adalah: (1) menghasilkan perangkat pembelajaran matematika model TSTS (Two Stay Two Stray) berbasis konstruktivisme berbantuan CD pembelajaran untuk menumbuhkan komunikasi matematis siswa yang valid dan efektif, dan (2) kemampuan komunikasi matematis siswa kelas eksperimen lebih baik dibandingkan kelas kontrol. Subyek penelitian ini siswa kelas VIIIa SMPN 16 Pekalongan. Penelitian menggunakan model pengembangan perangkat pembelajaran 3D Thiagarajan yang terdiri dari fase define, desain dan developdengan mengembangkan Silabus, RPP, Buku Siswa, LKS, CD pembelajaran dan Tes Kemampuan Komunikasi Matematis Siswa (TKKMS). Instrumen yang digunakan untuk pengumpulan data terdiri dari lembar validasi perangkat pembelajaran, lembar pengamatan aktivitas, angket motivasi, lembar pengamatan pembelajaran, angket respon siswa dan TKKMS. Hasil l penelitian adalah: (1) perangkat pembelajaran yang dikembangkan valid dengan nilai validasi silabus 3,81, RPP 3,84, Buku Siswa 3,71 , LKS 3,54, CD pembelajaran 3,60 dan TKKMS 3,73; (2) pembelajaran dengan model TSTS berbasis Konstruktivisme efektif, ditandai dengan tercapainya: (a) ketuntasan rata-rata kemampuan komunikasi matematis sebesar 80,16 melebihi KKM (Kriteria Ketuntasan Minimal) 70 dan proporsi ketuntasan klasikal melebihi 75%, (b) ketuntasan aktivitas dan motivasi melebihi KKM, (c) kemampuan komunikasi matematis siswa kelas eksperimen dengan rata-rata 80,16 lebih baik dari pada kelas kontrol sebesar 70,44. Abstract Purposes of this research: (1) produces of mathematical teaching equipments model TSTS based-of constructivism helped by CD Learning to grow-up student’s mathematical com- munication competences‘s (MCCT) valid, (2) obtain’s learning mathematical effectiveness of TSTS based-of constructuvism helped by CD Learning to grow-up MCCT, and (3) mathematical communication competences of experiment class better than control class. The subjects the research is the 8thA grade SMPN 16 Pekalongan. This research have been de- signed by using modification 3D Thiagarajan model consisting of phase define, design, and develop. The developed teaching equipment consists of syllabus, lesson-plan, student’s book, student’s worksheets, CD Learning and MCCT. Instrument of this research are activity obser- vation, motivation’s check list, learning observation and student check list. Results of this re- search: (1) teaching learning equipments developed are valid with validation value of syllabus 3,81, lesson plan 3,84, student’s book 3,71, student’s worksheets 3,54, CD Learning 3,60 and MCCT 3,73; (2) learning processes is effective, marked by: (a) the average mastery of MCCT 80,16 and the clasical mastery of MCCT exceed 75%; (b) the average mastery of activity and motivations more than minimum criteria; (c) the MCCT experiment class with an average of 80,16 is better than the control class of 70,50.

1 citations


Journal Article
TL;DR: In this paper, the authors determine the implementation of OPTIMIZE strategy using TTW learning model to improve communicating skill on cube and cuboid material in the VIII year which are valid, practice, and effective.
Abstract: Tujuan penelitian ini untuk mendapatkan perangkat pembelajaran berdasarkan strategi OPTIMIZE menggunakan model pembelajaran TTW untuk meningkatkan kemampuan komunikasi matematis siswa kelas VIII dalam materi kubus dan balok yang valid, praktis, dan efektif. Pengembangan perangkat pembelajaran pada penelitian ini menggunakan model Plomp. Data TKKM diolah menggunakan t test, uji proporsi z, regresi sederhana, dan uji Gain. Pengembangan perangkat menghasilkan: (1) Perangkat valid diperoleh skor rata-rata silabus 3,49; RPP, 3,34; buku peserta didik 3,32; LKPD 3,41; dan TKKM dalam kategori”valid”. (2) Perangkat praktis dari respon siswa dengan skor 3,87 dan kemampuan guru mengelola pembelajaran dengan skor 3,76, (3) pembelajaran efektif (a) TKKM 90,63 melampaui KKM 80 dan mencapai ketuntasan klasikal lebih dari 80%, (b) Terdapat perbedaan hasil belajar kelas eksperimen 90,63 dan kelas kontrol 78,92, (c) Aktivitas peserta didik berpengaruh positif terhadapTKKMsebesar 61,4%, dan (d) Ada peningkatan yang cukup signifikan hasil pretes 69,04 dan hasil postes 90,63. The purpose of this study is to determine the implementation of OPTIMIZE strategy using TTW learning model to improve mathematize communicating skill on cube and cuboid material in the VIII year which are valid, practice, and effective. The learning instrument development in this research using Plomp model. TKKM data processed by t test, the proportion ofz, simple regression, and Gain test.The instrument development process produces (1) Valid learning instrument with validity score average: sylabus3.49; learning implementation planing 3.34; lesson material suplement 3.32;student worksheet 3.41; and TKKM is categorized “valid”. (2) Learning instrument is practice from student activity with score 3.87 categorized active and teacher ability on learning with score 3.76, (3) Learning is effective: (a) Postest TKKM reaches 90.63 passes minimum completeness criteria is 80 and reaches individual completeness more than 80%; (b) there is different average between experiment class 90.63 and control class 78.92, (c) Student activity is possitive influencial in student mathematize communicating skill is the amount 61.4%, and (d) There is significant score increasing pretest 69,04 and postest 90,63.

Journal Article
TL;DR: In this paper, a learning device with meta-cognitive strategies for increasing self-efficacy towards problem solving ability to quadrilateral of class VII valid, practical and effective.
Abstract: Tujuan penelitian ini untuk menghasilkan perangkat pembelajaran matematika model Jigsaw strategi Metakognitif untuk meningkatkan self-efficacy terhadap kemampuan pemecahan masalah dengan materi segi empat kelas VII valid, praktis dan efektif. Penelitian ini merupakan penelitian pengembangan modifikasi Plomp. Jenis perangkat pembelajaran yang dikembangkan adalah silabus, RPP, bahan ajar, LKS, media pembelajaran, Tes Kemampuan Pemecahan Masalah. Teknik pengambilan data menggunakan lembar validasi, lembar pengamatan self-efficacy dan aktifitas, Lembar angket, dan Tes Kemampuan Pemecahan Masalah. Hasil penelitian menunjukkan: (1) perangkat yang dikembangkan valid; (2) pembelajaran praktis ditandai dengan respon positif siswa dan kemampuan guru baik; (3) Efektifitas ditandai dengan (a) kemampuan pemecahan masalah mencapai KKM yaitu 83,4 dan ketuntasan klasikal sebesar 90,3%; (b) self-efficacy dan aktifitas siswa secara bersama – sama berpengaruh positif terhadap kemampuan pemecahan masalah sebesar 71,9%; dan (c) self-efficacy dan aktivitas siswa mengalami peningkatan. Berdasarkan hasil penelitian dapat disimpulkan tujuan pengembangan perangkat tercapai. The aim of this research to produce mathematics’ learning device the Jigsaw model with Metacognitive strategies for increasing self-efficacy towards problem solving ability to quadrilateral of class VII valid, practical and effective. This research is development of modifications Plomp. Kinds of learning devices are developed syllabi, lesson plans, teaching materials, worksheets, instructional media, and problem solving ability test. Technique of data collection by using validation sheet, observation sheet student’s self-efficacy and activity, questionnaire, and problem solving ability test. The results showed: (1) device developed valid; (2) practical learning is characterized by the positive response of students and good teachers ability; (3) effectiveness characterized by (a) the ability of problem solving is reached KKM by 83.4 and classical completeness by 90,3%, (b) self-efficacy and student activities have positive influence on the problem solving ability by 71,9%, and (d) self-efficacy and student activities has increased. Based on the results of this research concluded the development goals achieved.

Journal Article
TL;DR: In this article, the authors analyzed students' creative thinking process and ability through open-ended learning and TKBKM and found that male students of high KBK did all the steps of creative thinking very well but they had weakness for not looking back weather the answers had solved the problem, while the female students were little careless in doing arithmatics.
Abstract: Pe nelitian ini bertujuan untuk menganalisis proses dan kemampuan berpikir kreatif siswa melalui pembelajaran open-ended. Sebanyak 30 siswa diberikan pembelajaran open-ended dan TKBKM. Jawaban siswa dianalisis untuk dikategorikan menjadi kelompok sesuai dengan kemampuan berpikir kreatifnya (KBK). Satu siswa laki-laki dan dua siswa perempuan dengan KBK tinggi, dua siswa perempuan dan dua siswa laki-laki dengan KBK sedang, dua siswa laki-laki dan dua siswa perempuan dengan KBK rendah diwawancara sebagai triangulasi. Siswa laki-laki KBK tinggi melakukan seluruh proses berpikir kreatif dengan sangat baik tetapi ada kelemahan pada evaluasi hipotesis yaitu tidak memeriksa kembali apakah jawaban sudah menjawab pertanyaan, sedangkan siswa perempuan belum cermat dalam aritmetika. Siswa laki-laki dengan KBK sedang melakukan proses dengan baik namun ada kekurangan pada evaluasi yakni tidak memeriksa jawaban dan belum mampu menentukan jawaban lain yang dapat digunakan untuk menyelesaikan masalah, sedangkan pada siswa perempuan sedikit kendala mulai muncul pada tahap memahami masalah dan lebih banyak muncul pada penyusunan hipotesis. Siswa laki-laki dengan KBK rendah kendala mulai muncul tahap memahami masalah yaitu kurang mampu dalam mengkaitkan yang diketahui dan yang ditanyakan serta bagaimana strategi penyelesaiannya, sedangkan siswa perempuan lebih banyak kendala pada saat menginterpretasikan soal sehingga jawaban yang diberikan tidak mengarah pada penyelesaian. This study aims to analyze students’ creative thinking process and ability through open-ended learning. Thirty students were given open-ended learning and TKBKM. The answers of students were analyzed and categorized. Deep interview were conducted to one male and two female students of high KBK, two male and female students of medium KBK, and two male and female students of low KBK as data triangulation of creative thinking process and ability. Male students of high KBK did all the steps of creative thinking process very well but they had weakness for not looking back weather the answers had solved the problem, while the female students were little careless in doing arithmatics. Male students of medium KBK did all the steps well but they did not look back the answers weather it was correct and solve the problem and also they could not find other solutions, while the female students of medium KBK had a little obstacle since understanding problem and more in formulating hypothesis. Male students of low KBK had obstacle since connecting the information and the problem itself, while female students had more obstacles in interpreting the problem so their answers did not lead to the correct solutions.

Journal Article
TL;DR: In this paper, the communication styles of teachers of teaching mathematics in MTs N Mranggen be reviewed communication theory of message design logic (CDL) based on a qualitative research.
Abstract: Komunikasi antara guru dan siswa merupakan faktor penting dalam proses belajar mengajar sehingga materi yang disampaikan terserap oleh siswa dengan baik Penelitian ini adalah untuk mengetahui bagaimana gaya komunikasi guru dalam mengajar matematika di MTs N Mranggen ditinjau dari teori komunikasi logika desain pesan Secara umum tujuan penelitian ini adalah didiskripsikannya gaya komunikasi guru matematika di MTs N Mranggen ditinjau dari teori komunikasi logika desain pesan Penelitian ini merupakan jenis penelitian kualitatif Pendekatan penelitian yang digunakan adalah pendekatan deskriptif penelitian deskriptif tidak bertujuan mencari hubungan Pengumpulan data dilakukan dengan wawancara mendalam, observasi partisipasi, dan dokumentasi Sumber data utama adalah guru matematika Keabsahan data yang digunakan dalam penelitian dengan menggunakan uji credibility (triangulasi dan kecukupan referensial), uji transferability, uji dependability, dan uji confirmability Hasil penelitian yang didapatkan adalah gaya komunikasi guru matematika dalam pembelajaran di MTs N Mranggen Setelah dianalisis GM1,GM2, dan GM3 cenderung menggunakan gaya komunikasi asertif Sedangkan untuk logika desain pesan GM1 adalah ekspresif, konvensional, retorika, sedangkan GM2 cenderung ekspresif, untuk GM3 cenderung konvensional dan retorika Model gaya komunikasi guru matematika di MTs N Mranggen adalah kontemporer, paradigma lama, dan transisional Communication between teachers and learners is an important factor in the learning process so that the material submitted by the students absorbed properly This study is to determine how the communication styles of teachers of teaching mathematics in MTs N Mranggen be reviewed communication theory of message design logic Purpose in this research is to describing communication styles mathematics teacher in MTs N Mranggen based on the theory of communication message design logic This research is a qualitative research Forms of researches approaches is descriptive approaches The purpose of descriptive approaches isn’t to looking for a relationship Acumulation of data take by doing depth interview, participate observation, and documentation The sources of data is a mathematics teachers This research use credibility, transferability, dependability, and confirmability The results obtained are communication styles in learning math teacher at MTs N Mranggen After GM1, GM2 and GM3 analyzed, they use assertive communication style The message design logic of GM1 likely all that is expressive, conventional, rhetoric, GM2 tend expressive, whereas GM3 tend conventional and rhetoric Models of communication style math teacher in MTs N Mranggen is contemporary, old paradigm, and transitional

Journal Article
TL;DR: In this article, a mathematical learning IDEAL Problem Solving model with constructivist approach and character education oriented is valid, practical, and effective, which is used to develop mathematical learning model.
Abstract: Tujuan penelitian ini adalah untuk mengembangkan model pembelajaran matematika model IDEAL Problem Solving dengan pendekatan konstruktivisme berorientasi pendidikan karakter yang valid, praktis, dan efektif. Metode pengambilan data yang digunakan adalah pengamatan, angket dan tes kemamuan pemecahan masalah. Hasil penelitian menunjukkan (1) perangkat pembelajaran yang dikembangkan telah dinyatakan valid oleh validator dengan skor rata-rata 4,37 untuk skor maksimum 5,00; dan (2) respon guru terhadap perangkat pembelajaran sebesar 92,7% (sangat baik) dan respon peserta didik terhadap pembelajaran sebesar 95% (sangat baik); (3) pengaruh keaktivan dan sikap terhadap kemampuan pemecahan masalah masing-masing sebesar 83,7%, dan 73,1%. Rata-rata kemampuan pemecahan masalah 81,68 dan peserta didik mencapai KKM=71 yaitu 93,75% lebih dari 80%, lebih baik daripada rata-rata kemampuan pemecahan masalah kelas kontrol. The purpose of this study is to develop mathematical learning IDEAL Problem Solving model with constructivist approach and character education oriented is valid, practical, and effective.The independent variables are activity (X1), andthe attitude of the students (X2), the dependent variable is problem-solving ability (Y). The methods are observation, questionnaires and problem-solving ability tests. Results of research showed (1) device the learning who developed has been declared valid by validator with score of the average 4,37 for maximum score 5,00; and (2) the response teachers’ against learning device amounted to 92.7% and response learners towards learning by 95%, (3) the regression equation active learners is y = -5.383 + 23.267 X1 with a value of 83.7%, the regression equation attitudes of learners obtained Y = -323.956 + 91.793 X2, with a value of 73.1%. Results of problem solving ability learners experimental classes exceeded KKM = 71 with an average of 81.68 and more than 80% of students achieving KKM is 93.75%, is better than the problem solving ability average of control class.