scholarly journals PENGEMBANGAN SOAL PENALARAN MATEMATIS SISWA PADA MATERI PELUANG

2020 ◽  
Vol 2 (2) ◽  
pp. 169-184
Author(s):  
Dea Meilisa Putri ◽  
Yuriska Destania
Keyword(s):  
Mathematical Reasoning ◽  
Design Stage ◽  
Development Method ◽  
Preliminary Stage ◽  
Self Evaluation ◽  
Expert Review ◽  
Evaluation Stage ◽  
Reasoning Skills ◽  
Two Stages ◽  
The Given

This research aimed to produce the product in the form of questions of valid and practical students' mathematical reasoning skills. The subjects of this study were 6 students of grade VIII to saw the readability of the given questions. The research and development method used the Tessmer model consisted of preliminary stage self-evaluation, expert review, one-to-one, small group, and field test. At the preliminary stage, there were two stages, namely preparation and design. The preparation of the stage was analyzing the curriculum, materials, and students' level. The design stage was done to design as questions of mathematical reasoning capabilities. The Self Evaluation stage was conducted after designed the questions of mathematical reasoning skills there were 15 questions and assesses whether the question meets the material, construction, and language. After evaluating the questions that would be validated by the expert reviewer and would be validated 3 times. After 14 questions validated that would be tested on 6 students to saw the practicality of the question through the student's responded questionnaire that was provided. Based on the result of the readability tested, the conclusion development of the questions from numbers 1 to 14 in the category of practicality were intervals of 4 ≤ RP (Produk) ≤ 5 which were classified as Very Practical.

scholarly journals PISA-LIKE MATHEMATICS PROBLEMS: USING TAEKWONDO CONTEXT OF ASIAN GAMES

2019 ◽  
Vol 10 (2) ◽  
pp. 277-288 ◽  
Author(s):  
Dewi Rawani ◽  
Ratu Ilma Indra Putri ◽  
Hapizah Hapizah
Keyword(s):  
Field Test ◽  
Formative Evaluation ◽  
Design Research ◽  
The Other ◽  
Self Evaluation ◽  
Expert Review ◽  
Mathematical Abilities ◽  
Mathematics Problems ◽  
Two Stages ◽  
Reasoning And Argument

This research aims to produce a valid, practical, and having potential effects PISA-like mathematics problems using taekwondo context in Asian Games. The subjects were MIA 3 student of SMA 10 Palembang. This study was design research of development study in which had two stages: the preliminary and formative evaluation. The formative evaluation includes self-evaluation, one-to-one and expert review, small group, and field test. The context is used to have the students estimate maximum numbers of exercising athletes in a hall with a specific size. The result of the analysis shows that the problems which were reviewed by three expert reviews are valid qualitatively based on the PISA framework; it is also practical and easy to understand the problem. Based on the analysis of students’ answer, the developed problems display potential effects on student’s diverse basic mathematical abilities on the various process of answering the problems. The basic mathematics abilities emerging among which are reasoning and argument ability. It appears that students can develop and solve the problem by modeling using their assumptions. Also, the other ability is designing strategies to solve problems in which students use various procedures in solving problems leading the conclusion.

scholarly journals Pengembangan LKPD Tema Tanah Airku Sub Tema Kota Palembang untuk Anak Kelompok B

2019 ◽  
Vol 1 (2) ◽  
pp. 129-141
Author(s):  
Gustiana Yuantini ◽  
Hasmalena Hasmalena ◽  
Syafdaningsih Syafdaningsih
Keyword(s):  
Small Group ◽  
Mean Value ◽  
Average Score ◽  
Self Evaluation ◽  
Average Value ◽  
Expert Review ◽  
Group Evaluation ◽  
Observation Methods ◽  
Evaluation Stage ◽  
Group B

This research aims to develop valid and practical student worksheet. Subjects in this research were B2 and B3 groups in state kindergarten of Pembina 2 Palembang. The model developed in this development was Rowntree consisting of One to one evaluation and small group evaluation. It was aimed to see the practicality and it used the Tessmer evaluation stage which consisted of self evaluation, expert review. Data collection techniques used in this research were interview, walkthrough and observation methods. According to the results of the research, it showed that the validity of the material and design obtained an average value of 3.77 in very valid categories. Student worksheet practicality test in terms of observations with a mean value of 95% in very practical category. The small group evaluation stage obtained an average score of 92% in the very practical category. Questionnaire result was 97% in valid category. From the result, it can be concluded that student worksheet theme of my homeland and sub-theme of Palembang city for group B children is valid and practical. It is also worth to use as learning student worksheet with Theme of my homeland

scholarly journals PENGEMBANGAN SOAL STATISTIKA UNTUK MENINGKATKAN KEMAMPUAN KONEKSI MATEMATIS SISWA

2020 ◽  
Vol 2 (2) ◽  
pp. 212-228
Author(s):  
Azzahro Nurul Furqoni ◽  
Yuriska Destania
Keyword(s):  
High School Students ◽  
Junior High School ◽  
Curriculum Evaluation ◽  
School Students ◽  
Self Evaluation ◽  
Expert Review ◽  
Question Item ◽  
One To One ◽  
The One ◽  
Two Stages

This research aimed to produce a product in the form of problem-connections of students mathematical was valid and practical (legible). This method of research was research and development. The research was conducted in Bengkulu City with the research subject of 6 students of grade VIII junior high school students and was carried out in May-June 2020. The method of data collection in development was carried out using Tessmer’s, which consists of preliminary, self-evaluation, expert review, and one-to-one. In the preliminary, two stages must be passed, namely preparation from completion. Was analyzing the curriculum, students, and material. Then, the completing the results of the students, curriculum evaluation, and the material was used as a reference for designing the mathematical connection ability, from the solution it produces 20 prototypes which are then assessed and fixed on self-evaluation. Of the 20 prototypes, these items will go through the validation stage (expert review) after 3 validation. Then, obtained 14 valid prototype items based on quantitative and qualitative analysis and test on 6 students to see the practicality or readability of items (one-to-one). The one-to-one stage was carried out to get comments on each question item to be analyzed qualitatively and quantitatively. Based on the qualitative comments, most of the provided students already understand the problem (legible) according to data, the average preceding data (legible) was recorded in the description of the pre-emptive questions at intervals of 4 ≤ RPproduc ≤ 5.

scholarly journals PENGEMBANGAN MEDIA PEMBELAJARAN PUZZLE PADA MATERI MEMBACA PERMULAAN SISWA KELAS 1 SD NEGERI 77 PRABUMULIH

2021 ◽  
Vol 14 (2) ◽  
pp. 157-168
Author(s):  
Tastin Tastin ◽  
Hani Atus Sholikhah ◽  
Sulastri Sulastri
Keyword(s):  
Test Score ◽  
Formative Evaluation ◽  
Average Score ◽  
Development Method ◽  
Self Evaluation ◽  
Reading Material ◽  
Post Test ◽  
Evaluation Stage ◽  
Initial Reading ◽  
Expert Validation

This study aims to: Produce reading mateirals which is validm, practical and effective, the method used is the R&D development method with the tessmer development model which consists of 2 stages, namely: the preliminary stage and the prototyping stage using a formative evaluation flow. Therefore, it can be concluded: (1) The design of puzzle learning media for the initial reading material for grade 1 students at SDN 77 Prabumulih Sumsel can be used to test its validity seen from the assessment at the self-evaluation stage, (2) Produce puzzle learning media on the beginning reading material that valid in score of 92, material expert validation obtained an average score of 98, and linguist validation obtained an average score of 95, (3) Produces puzzle learning media is effective with an average pre-test score of 54 while the average post-test score of 89

scholarly journals DEVELOPING PISA-LIKE MATHEMATICS PROBLEMS ON UNCERTAINTY AND DATA USING ASIAN GAMES FOOTBALL CONTEXT

2019 ◽  
Vol 10 (1) ◽  
pp. 37-46
Author(s):  
Dedi Yansen ◽  
Ratu Ilma Indra Putri ◽  
Zulkardi Zulkardi ◽  
Siti Fatimah
Keyword(s):  
High School ◽  
High School Students ◽  
Small Group ◽  
Formative Evaluation ◽  
Mathematical Literacy ◽  
School Students ◽  
Preliminary Stage ◽  
Expert Review ◽  
Mathematics Problems ◽  
Evaluation Stage

This study aims to generate the valid and practical PISA-like mathematics problems on uncertainty and data using the football game context of Asian Games. It also aims to see the potential effects of the problems towards the high school students’ mathematical ability. This study used a design research methodology with the type of development study which was divided into two stages, namely preliminary stage and formative evaluation stage. The preliminary stage covered the analysis of research subjects, curriculum analysis, PISA framework and creating a question instrument. The formative evaluation stage included the one to one consisting of three students together with expert review consisting of two validators, small group consisting of six students, and then the field test. This study produced valid and practical PISA-like mathematics problems on uncertainty and data content which have a potential effect on the senior high school students’ mathematical literacy ability. The validity was determined based on the expert review, while the practicality was determined based on one-to-one and small group assessment. The students' mathematical literacy abilities appeared during the research were communication, reasoning and argument, and devising strategies for problem-solving.

scholarly journals PENGEMBANGAN LKPD MATERI HIMPUNAN KONTEKS PENCARIAN HARTA KARUN DI SUNGAI MUSI

2021 ◽  
Vol 5 (2) ◽  
pp. 118
Author(s):  
Malalina Malalina ◽  
Rika Firma Yenni ◽  
Dian Apriani
Keyword(s):  
Small Group ◽  
Research Method ◽  
Teaching Material ◽  
Self Evaluation ◽  
Expert Review ◽  
Preliminary Study ◽  
Is Development ◽  
One To One ◽  
Two Stages ◽  
Musi River

ABSTRAKSumber belajar yang dapat dikembangkan untuk membantu peserta didik menjadi aktif dan memahami materi salah satunya adalah LKPD. LKPD adalah bahan ajar berupa lembaran didesain berisi latihan berisi langkah-langkah tugas yang harus diselesaikan peserta didik. Rumusan masalah dalam penelitian ini adalah bagaimana mengembangkan LKPD materi himpunan konteks pencarian harta karun di Sungai Musi yang valid dan praktis. Metode penelitian yang digunakan adalah pengembangan dengan dua tahap yaitu preliminary study dan formatif study. Penelitian ini hanya pada tahap self evaluation, expert review, one to one, dan small group dengan teknik pengumpulan data menggunakan walk through, dokumentasi, wawancara, dan angket. Penelitian ini menghasilkan produk LKPD materi himpunan konteks pencarian harta karun di Sungai Musi dengan kategori valid dan praktis. Kata kunci :Himpunan, LKPD, Konteks ABSTRACTOne of the learning resources that can be developed to help students become active and understand the material is LKPD. LKPD is a teaching material in the form of a sheet designed to contain exercises containing the steps of the task that must be completed by students. The formulation of the problem in this research is how to develop valid and practical LKPD for the context of finding treasures in the Musi River. The research method used is development with two stages, namely preliminary study and formative study. This research is only at the stage of self evaluation, expert review, one to one, and small group with data collection techniques using walk through, documentation, interviews, and questionnaires. This research produces LKPD products for the context of finding treasures in the Musi River with valid and practical categories. Keywords :Set, LKPD, Context

scholarly journals DESIGNS OF PISA-LIKE ASSIGNMENTS WITH YOGYAKARTA CONTEXTTO DETERMINE STUDENTS' LITERACY ABILITIES

2019 ◽  
Vol 14 (Number 1) ◽  
pp. 54-63
Author(s):  
Nur Rokhima ◽  
Suparman Suparman
Keyword(s):  
Small Groups ◽  
Industrial Revolution ◽  
Field Tests ◽  
Literacy Skills ◽  
Development Model ◽  
Development Research ◽  
Qualitative And Quantitative ◽  
Self Evaluation ◽  
Evaluation Stage ◽  
Two Stages

This study aims to develop the need to create PISA type problems using the Yogyakarta context that is designed to obtain student literacy skills. This research is a type of development research by adapting the Tessmer development model. This research was carried out in two stages, namely the preliminary stage, starting from the preparation and design, then the evaluation stage, which included self-evaluation, prototype making, small groups, and field tests. This research is limited to making prototypes. Thesubjects of this study were grade IX students of SMP Negeri 3 Depok, Indonesia. Data collection instruments consist of a collection of observations, interview guidelines, documentation sheets, and questionnaires. Data were analyzed with qualitative and quantitative techniques. The results showed that the design of the type of PISA that had been developed was declared valid; it could be used in the development of small groups and field tests. Thus, PISA design in the Yogyakarta context can be used by students, both with low, medium, and high abilities according to the needs of students in the industrial revolution era 4.0.

scholarly journals PENGEMBANGAN BAHAN AJAR MATERI BILANGAN BERBASIS SAINTIFIK UNTUK ANAK USIA 5-6 TAHUN DI TK ISLAM ALKAUTSAR INDRALAYA

2019 ◽  
Vol 6 (1) ◽  
pp. 1-10
Author(s):  
Issaura Dwi Selvi
Keyword(s):  
Design Development ◽  
Teaching Materials ◽  
Self Evaluation ◽  
Expert Review ◽  
Group Evaluation ◽  
Evaluation Stage ◽  
One To One ◽  
Average Observation ◽  
Addie Model ◽  
The One

This development research aims to produce teaching materials in the form of handouts for teachers in Al-Kautsar Indralaya Islamic Kindergarten. Development is done by using ADDIE model (analysis, design,development, implementation and evaluation). The evaluation was done by Tessmer's formativeevaluation with four evaluation phases, namely self evaluation, expert review, one-to-one evaluation andsmall group evaluation. Data collection techniques use observation and walkthrough. Experimental resultsHandout 1 of 3.75, Handout 2 of 3.75, Handout 3 of 3.80, Handout 4 of 3.65, Handout 5 of 3.75 andHandout 6 of 3.80 (with very valid category) . Furthermore, the one to one evaluation stage obtained theaverage of teacher observation with Handout 1 of 87%, Handout 2 of 88%, Handout 3 of 87%, Handout 4of 90%, Handout 5 of 87% and Handout 6 of 88% with excellent category). While in the small groupevaluation, the average observation result on Handout 1 of 90%, Handout 2 of 90%, Handout 3 of 92%,Handout 4 is 90%, Handout 5 of 88%, and Handout 6 of 90% (with excellent category). Therefore, it canbe concluded that the teaching materials of scientifically based number of numbers is valid and practicalfor use by the teacher.

scholarly journals Measure Reasoning Skill of Mathematics Students

2019 ◽  
Vol 8 (6) ◽  
pp. 85 ◽  
Author(s):  
Jeinne Mumu ◽  
Benidiktus Tanujaya
Keyword(s):  
Method Development ◽  
Mathematical Reasoning ◽  
Field Testing ◽  
Strategy Implementation ◽  
Mathematics Students ◽  
Development Method ◽  
Creative Reasoning ◽  
Test Instrument ◽  
West Papua ◽  
Reasoning Skills

The purpose of this research was to measure the reasoning skills of mathematics students using a test instrument developed from mathematics routine and non-routine task. The study used research and development method. Development of the instrument and measurement of mathematical reasoning skills using procedure: items preparation (modification task), expert validation, field testing, and data analysis. The field testing involves students of senior high school (SMA Negeri 1) and students of University of Papua, Manokwari West Papua Indonesia. The data analyzed through studying the students’ task solving, the transcripts of their work, interview after the test, identifying the specific task solving situations, and the arguments were supporting the strategy choice and strategy implementation. Result of research shows that student mathematical reasoning can be measured using the instrument test developed from the routine task and non-routine task. This research classifies the reasoning skills of mathematics students into two categories, imitative reasoning, and creative reasoning. Reasoning skills of mathematics students grouping results can be used by various interested institutions to evaluate the test using in mathematics instruction.

Operation Experiences with Biological Phosphorus Removal at the Sewage Treatment Plants of Berlin (West)

1991 ◽  
Vol 24 (7) ◽  
pp. 133-148 ◽  
Author(s):  
A. Peter ◽  
F. Sarfert
Keyword(s):  
Phosphorus Removal ◽  
Sewage Treatment ◽  
Chemical Precipitation ◽  
Biological Phosphorus Removal ◽  
Treatment Results ◽  
Sewage Treatment Plants ◽  
Research Activities ◽  
Two Stages ◽  
The Given ◽  
Biological Phosphorus

In investigations concerning sludge bulking in Berlin enhanced biological phosphorus removal was first observed unexpectedly. Because since 1986 an officially preset limit of 2 mg TP/l must be kept in all Berlin wastewater discharges it was decided to explore the capabilities of the observed mechanism under the specific circumstances of the exciting two large treatment plants in Ruhleben (240,000 m3/d) and Marienfelde (100,000 m3/d). For this purpose some of the existing units at both plants were equipped with anaerobic zones which were generated mainly by process modifications. Additionally stage one of the Ruhleben plant was altered completely in order to investigate the combination of biological phosphorus and nitrogen removal as a special pilot study in three parallel trains. The research activities and treatment results gained in each of the two stages of the Ruhleben and in the Marienfelde plant are reported in detail. For example BOD-related phosphorus removal rates were obtained ranging from 2.3-4.5 mg TP per 100 mg BOD removed. It must be stressed that all examinations were performed on full-scale conditions. At present the given limit of 2 mg TP/l in the Ruhleben plant is met without any chemical precipitation at least on average. From the beginning biological phosphorus removal will be integrated into further projected extensions.

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