The purpose of this study was to describe the process and results of the development of 21st century learning tools based math problem based learning to improve high-order mathematical thinking students’ in senior high school Padang city and describe the quality of math learning tools of the 21st century based on problem based learning to improve the aspect of validity, practicality. The methods of study is a research development that is used to develop a software product math learning 21st century form of RPP and LKPD integrating 4 C which was adapted from the model Plomp. (Plomp and Nieveen, 2013: 30). Subjects tested in this study were class X SMA Padang. The data collection instrument were the sheet analysis, field notes, interview, questionnaire, and test results of learning. Data were analyzed using descriptive analysis that describes the validity and practicality of learning tools are developed. This research data analysis technique used is based on a questionnaire filled by experts then analyzed for the validity of the resulting product. Analysis of the validity of using a Likert scale. The results of the validation of the validator indicates that the device is a valid PBL based learning and practical with some characteristics such as learning devices produced have been adapted to the characteristics of Problem Based Learning (PBL). RPP and LKPD designed as a guideline for teachers in implementing the learning process is valid and practical.

No abstract

Bentuk pola hubungan antara variabel prediktor dan variabel respon ada yang diketahui, namun pada nyatanya ada pula yang tidak diketahui. Apabila bentuk pola hubungan antara variabel respon dan variabel prediktor tidak diketahui, pendekatan regresi nonparametrik merupakan pendekatan yang paling sesuai. Pendekatan regresi nonparametrik tidak tergantung pada asumsi bentuk kurva regresi tertentu, sehingga akan memberikan fleksibilitas yang tinggi. Salah satu estimator regresi nonparametrik yang terkenal adalah spline truncated. Spline truncated merupakan potongan-potongan polinomial yang memiliki sifat tersegmen dan kontinu. Pada penelitian ini, akan disimulasikan pola hubungan antara kedua variabel yaitu respon dan prediktor yang tidak memiliki pola tertentu, yang kemudian didekati dengan dua pendekatan regresi, yaitu parametrik dan nonparametrik. Berdasarkan ukuran kebaikan estimasi kurva regresi menggunakan koefisien determinasi diperoleh hasil bahwa pendekatan regresi nonparametrik lebih baik daripada pendekatan regresi parametrik. Hal ini dikarenakan pendekatan regresi nonparametric memiliki fleksibilitas yang tinggi sehingga mampu menyesuaikan sendiri bentuk estimasi kurva regresi.

Based on observations, questionnaires and discussions with some of teacher of elementary school found many problems geometric and fraction material. The problems are: 1. In general, teachers have not used interactive media in explaining mathematic materials, so students are difficult to understand the subject, 2. Teachers have not yet facilitated various learning styles of students, 3. Students' assumptions on difficult mathematical subjects (full of numbers and symbols), so they are phobic with math, 4. Teachers urgently need the consolidation of geometrical and fraction materials through the creation of interactive media that match the material and characteristics of students, 5. Teachers desperately need training on how to design and create interactive media that can interest students to learn on geometry and fraction materials, so that students are no longer fobs with math and can easily understand the material well, 6. Teachers desperately need training on the use / utilization of interactive media that has been created in teaching the geometry and fraction materials. To solve the problem, team try to provide solutions to these problems by providing training on how to design, create and use interactive media especially plane geometry and fraction. The result of training, teachers are already able to design and make interactive media. They can explain plane geometry and fraction material easily, especially how to find the formula of area for instance rectangle, triangle, trapezium, etc. Further impact, students more easily understand the material well.

The aim of study to analyze the needs the development of mathematics learning device on 21st century skills-based Senior High School in Padang City. The population of the study is high school student's grade XI and Mathematics teacher in Padang city in 2018/2019. The sampling technique used purposive sampling method. The instrument was collected by observation and questioner and Analyzed descriptively. Conclusions of this research are: (1) learning material of high school mathematics class can be developed with 21st century skills-based mathematics learning; (2) Students have sufficient ability to follow 21st century mathematics-based learning; (3) teachers have the ability to use 21st century skills-based mathematics learning tools