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Journal : Tesseract: International Journal of Geometry and Applied Mathematics

DEVELOPMENT OF NUMERACY LITERACY INSTRUMENTS TO IMPROVE HIGH-LEVEL THINKING SKILLS IN JUNIOR HIGH SCHOOL STUDENTS Hidayatullah, Arif; Nindiasari, Hepsi; Sukirwan, Sukirwan
Tesseract: International Journal of Geometry and Applied Mathematics Vol. 2 No. 1 (2024): Tesseract: International Journal of Geometry and Applied Mathematics
Publisher : Nindikayla Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57254/tess.v2i1.26

Abstract

The background to this research is that there are very few numeracy literacy questions, students are still not trained enough to work on numeracy literacy questions, and teachers are not optimal in understanding the development of numeracy literacy questions even though in an effort to improve HOTS abilities students need to get used to dealing with numeracy literacy questions. This study aims to develop a math HOTS measuring instrument for first semester VII graders of junior high school (SMP) students. The research method is research and development with ADDIE stages namely analysis, design, development, implementation, and evaluation. The instruments used in the research were numeracy literacy test questions in the form of descriptions, observation sheets, response questionnaires, and interview sheets. The research flow begins with the initial analysis, the development of a grid of numeracy literacy questions, expert validation, revision, practitioner testing, small-scale trials, revisions, and large-scale trials. The results of the study were 18 items of numeracy literacy with Competency Standards for Numbers, Sets, Algebra, and Systems of Two-Variable Linear Equations. The numeracy literacy instrument indicators developed include analytical, evaluation, and creative abilities. The questions developed have valid quality as seen from the validity test of all the items above 0.5, reliability 0.86, difficult and moderate difficulty levels, and good and sufficient discriminating power. The mean HOTS score of students was 71. The conclusion of this study was to produce a valid and reliable HOTS measuring numeracy literacy instrument for junior high school students.
DEVELOPMENT OF NUMERACY LITERACY INSTRUMENTS IN ALGEBRA MATERIAL CLASS X VOCATIONAL SCHOOL Bastian, Heri; Nindiasari, Hepsi; Sukirwan, Sukirwan
Tesseract: International Journal of Geometry and Applied Mathematics Vol. 2 No. 2 (2024): Tesseract: International Journal of Geometry and Applied Mathematics
Publisher : Nindikayla Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57254/tess.v2i2.32

Abstract

This research aims to produce a Mathematics numeracy literacy instrument on algebra liner material in vocational schools that is tested for validity and reliability, as well as through systematic analysis of instruments with differentiating power tests and difficulty indexes. This type of research is a development study with the Wilson model and the Oriondo and Antonio model. The data collection method uses interviews, expert validation sheets, questionnaires and numeracy literacy tests. The data were analyzed descriptively and quantitatively. The results of the research obtained are: 1) expert assessment states that this numeracy literacy instrument is an instrument that is suitable for use; 2) the readability test shows that this numeracy literacy instrument is categorized as "good", 3) the validity test shows that this instrument is valid; 4) this numeracy literacy instrument is a reliable instrument with a reliability value of ri>rtable; 5) it has a good interpretive power with the conclusion that it can be used without revision; 6) Medium average difficulty index of question items. So that the resulting instrument is an instrument that is suitable for measuring students' numeracy literacy. This research aims to produce a Mathematics numeracy literacy instrument on algebra liner material in vocational schools that is tested for validity and reliability, as well as through systematic analysis of instruments with differentiating power tests and difficulty indexes. This type of research is a development study with the Wilson model and the Oriondo and Antonio model. The data collection method uses interviews, expert validation sheets, questionnaires and numeracy literacy tests. The data were analyzed descriptively and quantitatively. The results of the research obtained are: 1) expert assessment states that this numeracy literacy instrument is an instrument that is suitable for use; 2) the readability test shows that this numeracy literacy instrument is categorized as "good", 3) the validity test shows that this instrument is valid; 4) this numeracy literacy instrument is a reliable instrument with a reliability value of ri>rtable; 5) it has a good interpretive power with the conclusion that it can be used without revision; 6) Medium average difficulty index of question items. So that the resulting instrument is an instrument that is suitable for measuring students' numeracy literacy.