A Proposed Instructional Theory for Integer Addition and Subtraction

2012 ◽  
Vol 43 (4) ◽  
pp. 428-464 ◽  
Author(s):  
Michelle Stephan ◽  
Didem Akyuz
Keyword(s):  
Number Line ◽  
Teaching Experiment ◽  
Learning Trajectory ◽  
Realistic Mathematics Education ◽  
Instructional Theory ◽  
Education Theory ◽  
Addition And Subtraction ◽  
Support Students ◽  
Grade Classroom ◽  
Viable Model

This article presents the results of a 7th-grade classroom teaching experiment that supported students' understanding of integer addition and subtraction. The experiment was conducted to test and revise a hypothetical learning trajectory so as to propose a potential instructional theory for integer addition and subtraction. The instructional sequence, which was based on a financial context, was designed using the Realistic Mathematics Education theory. Additionally, an empty, vertical number line (VNL) is posited as a potentially viable model to support students' organizing their addition and subtraction strategies. Particular emphasis is placed on the mathematical practices that were established in this setting. These practices indicate that students can successfully draw on their experiences with assets, debts, and net worths to create meaning for integer addition and subtraction.

scholarly journals Desain Pembelajaran Penjumlahan dan Pengurangan Bilangan Menggunakan Konteks Bangka Belitung untuk Mendukung KBKM Siswa

2019 ◽  
Vol 2 (1) ◽  
pp. 11-24
Author(s):  
Rajab Vebrian ◽  
Yudi Yunika Putra
Keyword(s):  
Design Research ◽  
Pacific Islands ◽  
Teaching Experiment ◽  
Learning Trajectory ◽  
Learning Context ◽  
Design Learning ◽  
The Pacific ◽  
Addition And Subtraction ◽  
Support Students ◽  
Research Type

This study aims to produce learning trajectories of addition and subtraction of material numbers using the context of Bangka Belitung, also to find out whether the use of these learning designs can support students' Critical Thinking Abilities (KBKM). The research method, this research is a validation study design research type involving 6 students in the pilot experiment stage, and 25 students in the teaching experiment stage. The alleged learning trajectory was developed from a series of learning activities using the context of the Pacific Islands, such as sahang / pepper seeds as a model in learning the addition and subtraction of numbers. The results showed the use of trajectories in the context of Bangka Belitung provided different assessment results between the students' pretest and posttest scores. Most students have been able to solve the problem of addition and subtraction and provide arguments in answering the problems encountered. In conclusion, the use of instructional design using the context of Bangka Belitung in the learning of addition and subtraction of numbers can support student CBCS. Keywords: Numbers, Design, Learning Context

scholarly journals Pembelajaran Operasi Penjumlahan dan Pengurangan Bilangan Bulat Menggunakan Garis Bilangan

2021 ◽  
Vol 9 (1) ◽  
pp. 13-28
Author(s):  
Irianto Aras ◽  
Hermansyah Hermansyah ◽  
Jero Budi Darmayasa
Keyword(s):  
Retrospective Analysis ◽  
Video Recording ◽  
Number Line ◽  
Teaching Experiment ◽  
Design Stage ◽  
Learning Trajectory ◽  
Preliminary Design ◽  
Instructional Theory ◽  
Preliminary Design Stage ◽  
Actual Learning

Abstract:This study aims at determining the role of the number line media in helping students understand and obtain local instructional theory in learning integer operations in the 4th Grade of Madrasah Ibtidaiyah in Tarakan. This research is design with three stages, namely preliminary design, experimental design, and retrospective analysis. In the preliminary design stage, a number line media along with the hypothetical learning trajectory is made. Then the teaching experiment is conducted to compare the expected learning trajectory with the actual learning trajectory that takes place. In the final stage, a retrospective analysis is carried out by viewing the video recording of learning and evaluation results. From the analysis, it was found that the use of number lines can help students to understand the operations of addition and subtraction of integers. This study also developed local instructional theory related to learning integers using number lines.Abstrak:Penelitian ini bertujuan untuk mengetahui peranan media garis bilangan dalam membantu pemahaman siswa serta mengembangkan teori instruksional lokal (local intructional theory) pada pembelajaran operasi bilangan bulat di kelas IV di salah satu Madrasah Ibtidaiyah di Kota Tarakan. Desain penelitian ini terdiri dari tiga tahap, yaitu desain pendahuluan, desain percobaan, dan analisis retrospektif. Pada tahap desain pendahuluan dilakukan pembuatan media garis bilangan beserta dugaan lintasan belajar, kemudian dilakukan percobaan pengajaran untuk membandingkan lintasan belajar yang diharapkan dengan lintasan belajar yang sesungguhnya terjadi. Pada tahap akhir dilakukan analisis retrospektif dengan melihat rekaman video pembelajaran dan hasil evaluasi. Dari analisis tersebut ditemui bahwa penggunaan garis bilangan dapat membantu siswa untuk memahami operasi penjumlahan dan pengurangan bilangan bulat. Penelitian ini juga mengembangkan teori instruksional lokal terkait pembelajaran bilangan bulat menggunakan garis bilangan.

scholarly journals Supporting Students’ Reasoning About Multiplication of Fractions by Constructing an Array Model

2017 ◽  
Vol 1 (2) ◽  
pp. 99-110 ◽  
Author(s):  
Ronal Rifandi
Keyword(s):  
Qualitative Data ◽  
Video Recording ◽  
Teaching Experiment ◽  
Fifth Grade ◽  
Learning Trajectory ◽  
Realistic Mathematics Education ◽  
Informal Knowledge ◽  
Realistic Mathematics ◽  
Multiplication Of Fractions ◽  
Support Students

The aim of the research is to support students in constructing an array model as a bridge from their informal knowledge to the formal one in understanding the part-whole relation concept. The part-whole relation concept is important for students to reason about multiplication of fractions. Realistic Mathematics Education which is in Indonesia adapted as Pendidikan Matematika Realistik Indonesia (PMRI) is used as an approach in designing a series of lessons. For this purpose, hypothetical learning trajectory (HLT) became the base for conducting a teaching experiment and designing its learning materials.  The research was conducted in the fifth grade of SD Al Hikmah Surabaya, an elementary school in Indonesia, with five students as the participants. The collected data were qualitative data in the form of students’ written works and the transcript of video recording during the lesson. The data were analyzed retrospectively by confronting the conjecture of students’ thinking in the HLT with the fact in the teaching experiment. The result of the research shows that most students could use the contextual problem in promoting their ability on constructing their own array model to reason about part-whole relation.

scholarly journals Desain Pembelajaran Luas Lingkaran dengan Konteks Explore Dapur Berbasis Realistic Mathematics Education (RME) di Kelas VIII Sekolah Menengah Pertama (SMP)

2019 ◽  
Vol 1 (4) ◽  
pp. 37-44
Author(s):  
Asep Budiyono ◽  
Widya Kusumaningsih ◽  
Irkham Ulil Albab
Keyword(s):  
Mathematics Education ◽  
Design Research ◽  
Teaching Experiment ◽  
Learning Trajectory ◽  
Realistic Mathematics Education ◽  
Pilot Experiment ◽  
Realistic Mathematics ◽  
Hypothetical Learning Trajectory

Penelitian ini bertujuan untuk mengetahui peran Hypothetical Learning Trajectory(HLT)dalam membantu siswa dalam memahami konsep luas lingkaran serta mengetahui strategi yang digunakan oleh siswa terhadap Hypothetical Learning Trajectory(HLT) yang diberikan. Penelitian ini dilaksanakan di SMP Negeri 3 Petarukan, Kabupaten Pemalang. Subjek penelitian adalah siswa kelas VIII, dengan melalui 2 tahap yaitu pilot experiment melibatkan 6 siswa dari kelas VIII C dan dilanjutkan teaching experiment yang melibatkan 30 siswa dari kelas VIII B. Penelitian ini menggunakan metode design research yang didalamnya terdapat HLT yang memegang peranan sangat penting sebagai desain dan instrumen penelitian. Pembelajaran dalam penelitian ini menggunakan konteks peralatan dapur yaitu gelas, piring dan mangkuk sesuai dengan karakteristik dari RME. Hasil Penelitian menunjukkan bahwa Hypothetical Learning Trajectory (HLT) dapatmembantu siswa 1) membuat potongan juring lingkaran dan mengubahnya menjadi sebuah bangun datar baru yaitu trapesium, 2) menemukan sendiri konsep luas lingkaran dengan pendekatan trapesium, 3) menyelesaikan permasalahan dalam kehidupan sehari-hari yang berkaitan dengan konsep luas lingkaran. Adapun strategi yang digunakan siswa yaitu 1)mensketsakan permukaan perlatan dapur berupa lingkaran, 2) membandingan keliling dan diameter lingkaran untuk memperoleh nilai phi, 3)menyusun juring menjadi trapesium dan memformulasikan konsep luas lingkaran, 4) menerapkan konsep luas lingkaran.

scholarly journals DESAIN PEMBELAJARAN SUDUT MENGGUNAKAN KONTEKS RUMAH LIMAS DI KELAS VII

2016 ◽  
Vol 2 (2) ◽  
pp. 437
Author(s):  
Wiwik Widyawati ◽  
Ratu Ilma Indra Putri ◽  
Unsri Somakim
Keyword(s):  
Design Research ◽  
Video Recording ◽  
Teaching Experiment ◽  
Learning Trajectory ◽  
Research Approach ◽  
Angle Data ◽  
Instruction Theory ◽  
Actual Learning ◽  
Support Students ◽  
Analysis Of Teaching

The aims this study are to produce Learning Trajectory use Rumah Limas as context. The approach used is Pendidikan Matematika Realistik Indonesia (PMRI). The subjects were 26 students of class seventh of SMPN 1 Keluang. This study was using design research approach, the hypothetical Learning Trajectory was developed from a set of activities using Rumah Limas as context. In theory the development carried through the interactive process comprise of preliminary design, teaching experiment and restrospective analysis to contribute to Local Instruction Theory (LIT) to supporting students learn of angle. Data collected by making video recording about incident in the class, collecting students worksheet, giving pretest and postest, interviewing students. The designed HLT compared with Actual Learning Trajectory (ALT) during teaching experiment to analyze whether the students learned or didn't learn from what we had designed in the instructional sequence. Retrospective analysis of teaching experiment showed that by using Rumah Limas as context can support students learning of angle.

scholarly journals DESAIN PEMBELAJARAN MATERI HUBUNGAN ANTAR GARIS YANG MENDUKUNG PEMAHAMAN KONSEP SISWA

2021 ◽  
Vol 5 (1) ◽  
pp. 60
Author(s):  
Rika Firma Yenni ◽  
Malalina Malalina
Keyword(s):  
Retrospective Analysis ◽  
Design Research ◽  
Teaching Experiment ◽  
Learning Trajectory ◽  
Design Experiment ◽  
Preliminary Design ◽  
Instructional Theory ◽  
Pilot Experiment ◽  
Starting Point ◽  
Hypothetical Learning Trajectory

Peran guru tak lebih dari seorang fasilitator, moderator atau evaluator. sedangkan peran siswa lebih banyak aktif untuk berfikir dan mengkomunikasikan argumentasinya, menjustifikasi jawaban, serta melatih nuansa demokrasi dengan menghargai pendapat atau strategi teman lain. Penelitian ini bertujuan menghasilkan Local Instructional Theory (LIT) dalam pembelajaran materi hubungan antar garis yang mendukung pemahaman konsep siswa di kelas IV Sekolah Dasar. Pada materi ini, menuntut siswa dapat menyelesaikan permasalahan hubungan antar garis secara kontekstual. Subjek penelitian adalah siswa kelas IV MI Fajar Siddiq Palembang. Metode yang digunakan adalah design research terdiri dari tiga tahap, yaitu: preliminary design, design experiment (pilot experiment dan teaching experiment), dan retrospective analysis. Namun pada penelitian ini hanya dilakukan sampai pada tahap pilot experiment. Penelitian ini mengembangkan hasil pembelajaran hubungan antar garis dengan menunjukkan aktivitas dan prosedur serta strategi siswa dalam menemukan ide atau strategi dalam mendeskripsikan materi hubungan antar garis. Pada bagian ini, akan dibahas penggunaan garis lurus sebagai starting point pembelajaran hubungan antar garis dengan Pendidikan Matematika Realistik Indonesia (PMRI) sebagai pendekatan yang mendukung aktivitas dari penggunaan konteks tersebut. Selain itu, perubahan dari Hypothetical Learning Trajectory (HLT) ke Learning Trajectory (LT) melalui aktivitas, dilakukan dengan pengumpulan data menggunakan lembar observasi, wawancara, rekaman video, foto, dan lembar aktivitas siswa

scholarly journals Pembelajaran Penjumlahan dan Pengurangan Bilangan Dua Digit secara Simultan untuk Mengembangkan Intuisi Bilangan Siswa

2021 ◽  
Vol 4 (1) ◽  
pp. 31-40
Author(s):  
Ratih Ayu Apsari ◽  
Sariyasa Sariyasa ◽  
I Gusti Putu Suharta ◽  
Baidowi Baidowi ◽  
Tabita Wahyu Triutami
Keyword(s):  
Number Sense ◽  
Comparative Method ◽  
Learning Trajectory ◽  
Realistic Mathematics Education ◽  
Realistic Mathematics ◽  
Constant Comparative Method ◽  
Post Test ◽  
Preliminary Study ◽  
Addition And Subtraction ◽  
Teaching Experiments

The learning of addition and subtraction that usually be done in sequence impact students’ tendency to separate type of the strategies employ to solve the related problems. In fact, there are a number of situations that can be observed and solved through both lenses. Therefore, in this study we designed a simultaneous addition and subtraction of two-digit numbers learning trajectory. The learning activities were constructed based on Realistic Mathematics Education (RME) Approach. This design study was conducted in three steps consist of preliminary study, teaching experiments, and retrospective analysis. The teaching experiments were done in two cycle, the first was done with four students and the second was done with 33 students in two classes of an elementary school located in Singaraja, Bali. The data related to number sense ability were gathered from observation and students’ written work in solving worksheet and post-test. The collected data were analyzed using constant comparative method. From the results, we found that a simultaneous learning of two-digit numbers addition and subtraction were effectively develop the students’ number sense and encourage the students to develop efficient counting strategies.

scholarly journals Desain Pembelajaran Pecahan melalui Pendekatan Realistik di Kelas V

2019 ◽  
Vol 8 (1) ◽  
pp. 25-36
Author(s):  
Warsito Warsito ◽  
Yeni Nuraini ◽  
Sukirwan Sukirwan
Keyword(s):  
Design Research ◽  
Teaching Experiment ◽  
Learning Trajectory ◽  
Instructional Theory ◽  
Framework Analysis ◽  
Research Activities ◽  
Learning Mathematics ◽  
Third Stage ◽  
Three Stages ◽  
Is Design

AbstrakPecahan merupakan salah satu topik matematika yang hampir selalu menjadi masalah bagi siswa sekolah dasar (SD). Masalah tersebut muncul karena umumnya siswa tidak memahami konsep pecahan. Penelitian ini merupakan penelitian desain (design research) yang dirancang untuk memberikan suatu pertimbangan yang baik terhadap proses pembelajaran operasi pecahan melalui dugaan-dugaan yang dibangun dalam kerangka analisis hypotetical learning trajectory (HLT) yang kemudian diujicobakan dalam pembelajaran matematika realistik (PMR). PMR mendasari dari seluruh kegiatan penelitian desain riset.  Hasil penelitian ini tergambar dari teori instruksional lokal (local instructional theory). Design research dilakukan dalam tiga tahap, yaitu desain pendahuluan, percobaan mengajar yang terdiri siklus 1 dan siklus 2, dan tahap ketiga analisis retrospektif.  Penelitian melibatkan menggunakan sampel sebanyak 29 siswa kelas V di SDI Nurul Hasanah yang terdiri 4 orang siswa pada siklus satu dan 25 siswa pada siklus kedua.  Hasil penelitian dapat menunjukan bahwa serangkaian kegiatan pembelajaran dengan PMR dapat membawa siswa dari situasi konkret menuju situasi yang lebih formal.  Siswa mampu mengerjakan bilangan pecahan dari bentuk kontektual dengan disertai alasan. Learning Design Fractions through Realistic Approach in Class VAbstractFractions is one of  the mathematics topic that are almost to be problem for elementary school (SD) . This problem arises because generally studenst do no understand about concept of fraction. This research is design research  designed to provide a good consideration of learning process of  fractional operations through allegations built in framework analysis hypotetical learning trajectory (HLT), which later tested in learning mathematics realistic (PMR). PMR underlies all research design research activities. The results of this study are drawn from local instructional theory. Design research is carried out in three stages, namely preliminary design, teaching experiment consisting of cycle 1 and cycle 2, and the third stage of retrospective analysis. The study involved using a sample of 29 grade V students at SDI Nurul Hasanah consisting of 4 students in cycle one and 25 students in the second cycle. The results of the study can show that a series of learning activities with PMR can bring students from concrete situations to a more formal situation. Students are able to work fractions of a contextual form with reason.

scholarly journals PEMAHAMAN MAHASISWA TERHADAP INTEGRAL SEBAGAI ANTI TURUNAN, SUATU DESAIN RISET PADA KALKULUS INTEGRAL

2017 ◽  
Vol 1 (1) ◽  
pp. 9 ◽  
Author(s):  
Fridgo Tasman ◽  
Defri Ahmad
Keyword(s):  
Learning Outcomes ◽  
Teaching Experiment ◽  
Learning Trajectory ◽  
First Year ◽  
Realistic Mathematics Education ◽  
Classroom Discussions ◽  
First Year Students ◽  
Realistic Mathematics ◽  
Instructional Activities ◽  
Class Room

The low learning outcomes and student’s difficulties in understanding calculus courses, espe-cially integral topic, encourage us as researcher to design a calculus lesson for first year students by using realistic mathematical approach (Realistic Mathematics Education). For that we try to design a series of instructional activities starting from understanding integral as an anti derivative. The in-structional activity is designed and developed based on the learning process that occurs in the class-room by involving 30 first year students in FMIPA UNP. The classroom learning compared with our Hypothetical Learning Trajectory (HLT). The results of teaching experiment show that students' un-derstanding of derivative plays important role in understanding the integrals, in general students have difficulty in communicating their ideas in determining the anti-derivative of a function. Through class-room discussions students can get ideas and discuss it in determining the anti-derivative of a function. Based on these results it is recommended to conduct classroom discussions to build students' under-standing in studying calculus especially integral as an anti derived.

scholarly journals DESIGNING LEARNING ROTATION USING THE CONTEXT OF BAMBOO WOVEN MOTIF

2020 ◽  
Vol 4 (2) ◽  
pp. 100
Author(s):  
Maryati Maryati ◽  
Rully Charitas Indra Prahmana
Keyword(s):  
Design Research ◽  
Learning Trajectory ◽  
Realistic Mathematics Education ◽  
Preliminary Design ◽  
Realistic Mathematics ◽  
Formal Level ◽  
Three Stages ◽  
Transformation Geometry ◽  
Ninth Grade Students ◽  
Design Experiments

An essential part of learning transformation geometry is rotation. Before learning more about other parts of the transformation geometry topic, such as translation, dilation, and reflection, firstly, students are required to understand well about rotation. However, several students have not been able to understand this subject properly due to the stages of learning in the rotation has not been appropriately arranged. Thus, this study aims to design a student learning trajectory in learning rotation, which develop from informal to formal level through the Indonesian Realistic Mathematics Education (IRME) approach. Furthermore, researchers used a design research method divided into three stages, namely preliminary design, design experiments, and retrospective analysis. This study describes how the bamboo woven motif contributes significantly to 31 ninth-grade students understanding the rotation concept. As a result, the woven bamboo motif's context can stimulate students' understanding of rotation. It is proven based on the strategies and models of students during their learning process which contributes to their fundamental knowledge of rotation.

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