Mujahidawati, Gugun M. Simatupang, Novferma, A. Frianto, Febbry Romundza
{"title":"Practical Analysis of Differential Equation Module to Improve Student’s Logical Thinking Ability","authors":"Mujahidawati, Gugun M. Simatupang, Novferma, A. Frianto, Febbry Romundza","doi":"10.2991/ASSEHR.K.210508.084","DOIUrl":"https://doi.org/10.2991/ASSEHR.K.210508.084","url":null,"abstract":"Students' ability to think logically is needed when making decisions in solving problems, making decisions from existing problems, and processing problems after being given a problem. This study aims to produce a practical differential equation module. This research is part of development research using the 4-D development model. The stages of developing the 4-D model consist of 4 stages, namely (1) define, (2) design, (3) develop, and (4) disseminate. This research only reached the practicality test of this product. It can be seen from the responses of 2 lecturers who have taught differential equations and 15 students and will be continued in the field trial stage. The research instrument consisted of individual test sheets (lecturer response questionnaire), and limited test sheets (student response questionnaires). Suggestions and comments from the lecturers and students' responses to the differential equation module learning were analyzed descriptively, while the data in the form of scores were analyzed descriptively quantitatively. The results of this study indicate that the small group trial on 2 lecturers (lecturer responses) met the very practical criteria, with an average score proportion of 89.6%. While the results of the limited trial of 15 students (student response perception questionnaire) met the very practical criteria with an average score proportion of 84.48%. So it can be denied that the product in the form of a differential module to improve logical thinking skills meets practical criteria and is feasible to apply.","PeriodicalId":251100,"journal":{"name":"Proceedings of the 1st International Conference on Mathematics and Mathematics Education (ICMMEd 2020)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133788279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dahliatul Hasanah, I. N. Hidayah, Trianingsih Eni Lestari, Lucky Tri Oktoviana, M. Agung
{"title":"Investigating Students’ Errors in Graphing Polynomial Functions","authors":"Dahliatul Hasanah, I. N. Hidayah, Trianingsih Eni Lestari, Lucky Tri Oktoviana, M. Agung","doi":"10.2991/ASSEHR.K.210508.049","DOIUrl":"https://doi.org/10.2991/ASSEHR.K.210508.049","url":null,"abstract":"The transition from school to college mathematics courses involving advanced mathematics is a challenging task for many students. Undergraduate students in their first year are very often to experience difficulties in understanding mathematical concepts in a setting that emphasizes symbolic algebraic skills and graphing skills. Graphing skills are very important ability to grasp for students especially for whom mastering in mathematics. However, many references outlined that many students lack graphical skills. This study aims to investigate various students’ errors in graphing polynomial functions which are considered as basic types of functions. To gather data on students’ errors in graphing polynomial functions, two kinds of test are administered to first year students majoring in mathematics. The first test is directed to investigate students’ prior knowledge on graphical skills learnt in school. On the other hand, the second one is aimed to gather information on students’ graphical skills in higher order polynomial functions which have not been taught in school. The result reveals that many students make errors in graphing higher polynomial functions the same way as graphing linear and quadratic ones. Students’ prior knowledge in graphing linear and quadratic functions essentially influences graphing skills in polynomial functions of higher degree.","PeriodicalId":251100,"journal":{"name":"Proceedings of the 1st International Conference on Mathematics and Mathematics Education (ICMMEd 2020)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132725678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Using the Rasch’s Partial Credit Model to Analyze the Quality of an Essay Math Test","authors":"S. Wahyuningsih","doi":"10.2991/ASSEHR.K.210508.073","DOIUrl":"https://doi.org/10.2991/ASSEHR.K.210508.073","url":null,"abstract":"The instrument in the form of an essay math test is one of the tools to measure the progress of the learning process or learning outcomes. The essay math test needs to be applied in education because students are trained to be independent, creative, innovative, and improve literacy skills. A good measurement model facilitates as much information as possible, for example, qualitative information, the accuracy of the interpretation of the instrument according to its function, provides a linear measure, can overcome missing data, and find data that is incorrect (misfits) or uncommon (outliers). Rasch's Partial Credit Model can identify the quality of the essay math test more accurately. The reliability value in Rasch modeling is indicated by the value of individual separation (person separation) and item separation. Output summary statistics to get information on the person and item reliability and Cronbach alpha. Analysis with the Rasch model produces a statistical analysis of suitability (fit statistics) which provides information that the data obtained ideally illustrates that people who have a high ability provide patterns of answers to items according to their level of difficulty. To analyze the quality of an essay math test using Rasch's Partial Credit Model, ministep software can be used.","PeriodicalId":251100,"journal":{"name":"Proceedings of the 1st International Conference on Mathematics and Mathematics Education (ICMMEd 2020)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129073107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Girth of the Total Graph of ℤ\u0000 n","authors":"Rafika Dwi Any, I. N. Hidayah","doi":"10.2991/ASSEHR.K.210508.080","DOIUrl":"https://doi.org/10.2991/ASSEHR.K.210508.080","url":null,"abstract":"Let R be a commutative ring with a non-zero identity, and Z(R) is a set of zero-divisors of R. The total graph of R, denoted TΓ(R), is an (undirected) graph with all elements R as vertices of TΓ(R) and for distinct vertices x, y ∈ R are adjacent if and only if x + y ∈ Z(R). The girth of TΓ(R) is the length of the shortest cycle in TΓ(R), its denoted by gr(TΓ(R)). In this paper, we discuss the characterization of the total graph of Zn, TΓ(Zn)and gr(TΓ(Zn)).","PeriodicalId":251100,"journal":{"name":"Proceedings of the 1st International Conference on Mathematics and Mathematics Education (ICMMEd 2020)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122985899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}