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All Journal Al-Jabar : Jurnal Pendidikan Matematika Journal on Education
Yudi Prasetio
IKIP SIliwangi
Education Mathematics

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MENINGKATKAN KEMAMPUAN PENALARAN DAN HASIL BELAJAR MATEMATIKA SISWA SMK DENGAN PEMBELAJARAN PROBLEM SOLVING Yudi Prasetio; Luvy Sylviana Zanthy
Journal on Education Vol 1 No 2 (2019): Journal On Education
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.857 KB) | DOI: 10.31004/joe.v1i2.34

Abstract

This study aims to identify and describe an increase in reasoning and student learning outcomes in mathematics learning with problem solving learning. This research is a class research or Classroom Action Research (CAR). The research subjects who acted were students of Class XI of Jabir Al-Hayyan Vocational School, amounting to 30 students, while the object of the research was mathematical reasoning and student learning outcomes. Methods of collecting data through observation, testing, documentation, and field notes. Data analysis techniques in descriptive qualitative flow models. Data validity using triangulation technique is source triangulation and method. Based on these results, it was obtained: 1) Improving students' mathematical reasoning can be seen from increasing indicators which include, among others: a) The ability to think logically before the action by 30%, increase to 63.33% in cycle 1 and cycle 2 increases to 76.67%, b) The ability to think critically before the action was 26.67%, increased to 56.67% in the first cycle, and the second cycle increased to 70%, c) The ability to draw conclusions before the action by 20%, increased to 46.67% in the first cycle and the second cycle increased to 63.33%, 2) improving students' mathematics learning outcomes which can be seen from the results of written tests that met the value of ≥ 75 before the action by 43.33%, increasing to 63 , 33% in cycle 1 and cycle 2 increases to 80%. This study concludes that learning problem solving when learning mathematics can improve students' reasoning and learning outcomes.
Analysis of Student Problem Solving Skill and Activity Concentration on a Senior High School Heris Hendriana; Ratni Purwasih; Erwin Triawan; Yudi Prasetio; Tri Satria
Al-Jabar: Jurnal Pendidikan Matematika Vol 9, No 1 (2018): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (303.459 KB) | DOI: 10.24042/ajpm.v9i1.2068

Abstract

The aim of the research  to know the level of student  problem solving skill of  Senior high school students on their  mathematical problem and activity concentration. The object of the research was conducted  at one of Senior high school of Cimahi. the Subject  of the research  is all  twelve grades of Senior high School Students of Science Program in Cimahi. The research used descriptive qualitative research to describe the student analysis error on doing the question of problem solving ability. The data of the research was found using diagnostic of series and rows and also student questionnaire. Data collecting technique used Miles and Huberman concept  that are reduction data, reporting data and draw the conclusion. The result of the research are: (1) the level of the ability to solve the problem is still low (2) the common student error did not understand the questions and have no ability to communicate in mathematical form. (3) the student’s activity is rated strong. Some solutions can be given to increase student problem solving ability through practice or question drill structured  and gived the variety questions as material practice. 
Co-Authors Erwin Triawan Heris Hendriana Luvy Sylviana Zanthy Ratni Purwasih Tri Satria