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All Journal PRISMA JNPM (Jurnal Nasional Pendidikan Matematika)
Muhammad Rizki Cahyadi
Universitas Muhammadiyah Malang
Mathematics Social Sciences

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Development of Essay Test Assessment Rubric for Polya Theory-Based Mathematical Problem-Solving Muhammad Rizki Cahyadi; Bhaskoro Prasetyo Adi Maryanto; Mohammad Syaifuddin; Rani Darmayanti
JNPM (Jurnal Nasional Pendidikan Matematika) Vol 7, No 1 (2023)
Publisher : Universitas Swadaya Gunung Djati

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (615.515 KB) | DOI: 10.33603/jnpm.v7i1.7724

Abstract

Abstract. Assessment is an important part of the learning process. However, assessment is often carried out subjectively by the examiner, especially in essay tests. The scoring rubric is one of the solutions to minimize the subjectivity of the assessment to produce more objective and consistent grades. Therefore, it is necessary to develop an essay test assessment rubric. This study aims to produce a rubric for evaluating essay tests for mathematical problem-solving abilities based on Polya's theory. The method for developing an assessment rubric uses the Plomp model which consists of three phases, namely the initial research phase, the prototype phase, and the assessment phase. The results of the validity test by experts obtained a score of 3.40 on a scale of 1-4. The rubric of the validation results was then implicated in the assessment of the essay test given to 30 junior high school students. The implication of the rubric is as well as an empirical test of the effectiveness of the rubric. The empirical test results using three groups of raters obtained a correlation coefficient of 0.9290. Based on the results of validity tests and empirical tests, it can be concluded that the rubric for assessing essay tests for mathematical problem-solving abilities based on Polya theory is valid and feasible.Keywords: Mathematical Problem Solving, Polya, Rubric Assesment, Essay Test.
Portrait of Junior High School Students’ Motivation in Learning Geometry Muhammad Rizki Cahyadi; Akhsanul In'am; Nopia Rizki; Alfi Rachma Nisfi Laila
PRISMA Vol 12, No 1 (2023): PRISMA
Publisher : Universitas Suryakancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35194/jp.v12i1.2734

Abstract

Geometry is a branch of mathematics that deals with shapes and dimensions. In learning geometry it is not uncommon for students to experience difficulties and mistakes in understanding concepts. Motivation is an important factor that needs to be considered so that students remain enthusiastic in the learning process of geometry. Motivation becomes a driving force and trigger for students to be active in the learning process. This research aims to provide a portrait of the motivational condition of junior high school students in learning geometry. This research is quantitative descriptive. The research was conducted on 136 junior high school students who were randomly selected from 3 different cities, namely Medan, Tulungagung and Lombok. The data collection technique was carried out using a motivational questionnaire instrument. Data analysis was performed with descriptive statistical analysis. The results of this research indicate that junior high school students' motivation in learning geometry is high with a score of 3.96 on a scale of 1-5.
Co-Authors Alfi Rachma Nisfi Laila Bhaskoro Prasetyo Adi Maryanto In’am, Akhsanul Mohammad Syaifuddin Nopia Rizki Rani Darmayanti