Proceedings of the 1st International Conference on Mathematics and Mathematics Education (ICMMEd 2020)

80 articles

**Proceedings Article**

## Connecting Effective Mathematics Teaching Practices and Mathematical Practices

Trena L. Wilkerson

Learning during the pandemic presents a major challenge for mathematics teachers. In this condition, Teacher must examine effective mathematical teaching practices that support each and every student to develop a deep understanding of mathematics; and developing a positive mathematical identity and strong...

**Proceedings Article**

## The Continuing Value and Relevance of Mathematics Appreciation Courses

Jose Maria P. Balmaceda

In today’s information and data-driven society, it is vital for an informed citizen to have: (i) working competency in quantitative reasoning, and (ii) and general awareness of math – its true nature, role in society, strengths and limitations, and connections with other disciplines. Mathematics appreciation...

**Proceedings Article**

## Extension of internal ratio of a line segment into complex values and its application to the generalization of Menelaus’ theorem

Masayuki Ichikawa, Naoyasu Kita, Hiroto Matsumoto, Yoshihisa Nakamura

In mathematics and mathematics education, ranges of application are sometimes generalized. This article studies the generalization of the concept on internally dividing points. The ratios of internally dividing points are usually considered in real numbers since the real numbers are naturally corresponding...

**Proceedings Article**

## Indonesian New Normal Mathematics Education - Seeking Certainty in Uncertain Times

Allan Leslie White

Humanity has dealt with pandemics or plagues throughout history. History also demonstrates that in periods of uncertainty there are always guides that remain certain. In response to Covid-19, the Indonesian government’s ‘New Normal’ provided a list of challenges for all educators, who must then adapt...

**Proceedings Article**

## Completely Prime Modules Over Path Algebras for Dynkin Quiver of Type *A*_{n} and *D*_{n}

_{n}

_{n}

Risnawita, Irawati, I. Muchtadi-Alamsyah

Let K be a field and Q be a quiver (directed graph), and let A = KQ be the path algebra that corresponds to Q with coefficients in K. An A-module M is a completely prime (c-prime) module in the sense that rm = 0 for one m ∈ M and r ∈ A implies that either r annihilates all M or m = 0. In this paper,...

**Proceedings Article**

## The 2^{nd}, 4^{th}, and 6^{th}-Order Finite Difference Schemes for Pollutant Transport Equation

Nadhira Karima, Ikha Magdalena

In this paper, we study the pollutant transport phenomenon using an advection-diffusion equation. To solve the model numerically, we apply the finite difference method. Here we use the second, fourth, and sixth-order explicit finite difference schemes. To validate our numerical models, we compare the...

**Proceedings Article**

## Cadets’ Effectivity and Perception on Moodle Online Learning in Economy Mathematics Course

Ningrum Astriawati, Himawan Aditya Pratama

This research aims to describe the effectiveness and see the tendency of cadets’ perceptions of moodle-based online learning during the Covid-19 pandemic in the Economy Mathematics Course. The research population was all cadets who took the Economy Mathematics Online Course at the Yogyakarta Maritime...

**Proceedings Article**

## The Effect of the Realistic Mathematics Education Approach: Meta-Analysis of the Measured Mathematical Ability Angle

Maximus Tamur, Valeria S kurnila, Emilianus Jehadus, Adi Nurjaman, Kanisius Mandur, Sabina Ndiung

Although the literature has presented the overall effect of the RME approach, no specific studies have analyzed its relationship to the type of mathematical ability being measured. This meta-analysis study was conducted to measure the overall effect of RME and explore its relationship to types of mathematical...

**Proceedings Article**

## Dealing with Challenges in Teaching & Learning Mathematics in Flipped Classroom Model in Pandemic Era

Agus Sofian Eka Hidayat, Wakhid Fitri Albar, Wihdati Martalyna

The existence of technology in teaching and learning processes has changed the way how teachers transfer their knowledge to their students. Moreover, pandemic covid-19 has forced the use of technology in learning. The existence of flipped classrooms has given positive effects towards both learning effectiveness...

**Proceedings Article**

## Dynamic Model Analysis of the Spread of Drug Addicts with Educational Effects

R Resmawan, N Supu, N Achmad

This article discusses the analysis of dynamic models of the spread of drug addicts with educational effects. This model is modified from the White and Comiskey model by adding populations that have stopped using drugs so that the model will form the type of SURS. Besides, modifications were also made...

**Proceedings Article**

## The Impact of Pandemic Dynamics in Differential Calculus Course: An Overview of Students’ Self-Regulated Learning Based on Motivation

Kurnia Dirgantoro, Robert Soesanto

During pandemic, learning has transitioned into online learning. This causes Universitas Pelita Harapan (UPH) students in Faculty of Education must be repatriated to their regions and undergo half semester of differential calculus learning in online mode. Therefore, it makes aspects of self-regulated...

**Proceedings Article**

## Determine the Elective Courses in Islamic Higher Education Using Transportation Vogel’s Approximation Method

Dindin Jamaluddin, Elis Ratna Wulan, Agus Maolana Roby

The assignment problem is a special case of the linear programming problem in the industrial, business, education, and assignment problems that we often find in everyday life. The assignment problem addresses issues related to the optimal assignment from a variety of productive and different levels of...

**Proceedings Article**

## LCD Codes over 𝔽_{q} + *v*𝔽_{q}+ *v*^{2}𝔽_{q}+ ⋯ + *v*^{m}^{-1}𝔽_{q}

_{q}

_{q}

_{q}

^{m}

_{q}

Faldy Tita, Djoko Suprijanto

In this article, we study linear codes with complementary dual (LCD codes) over the ring 𝔽q + v𝔽q+ v2𝔽q+ ⋯ + vm-1𝔽q, where q = ps; p is an odd prime, s is a positive integer, and vm = v; which generalize the observation of Melakhessou et al. (2018). We give necessary and sufficient conditions on...

**Proceedings Article**

## Portfolio Performance Evaluation for LQ 45 Index in 2016-2020 Periods Using the Treynor Method

Wahidah Alwi, B Nurhafsari., Ilham Syata, Risnawati Ibnas, Sri Dewi Anugrawati

This research discussed the portfolio performance evaluation using the Treynor method. The portfolio performance evaluation aims to assess the established portfolio whether had a good performance and suitable to the investment goals. At the research, a portfolio was selected based on the efficient stock...

**Proceedings Article**

## Sumatra Land Surface Temperature Increase

M Munawar, T A E Prasetya, R McNeil, R Jani

Climate change in Sumatra island is likely a result of widespread land-use changes by the plantation industry. This study aims to investigate trends in land surface temperatures in Sumatra island. Land surface temperatures from 2001-2020 were downloaded from the National Aeronautics and Space Administration...

**Proceedings Article**

## The Determinant of Pentadiagonal Centrosymmetric Matrix Based on Sparse Hessenberg’s Algorithm

N Khasanah

The algorithm of general pentadiagonal matrix has been evaluated before for computational purpose. The properties of this matrix on sparse structure are exploited to compute an efficient algorithm. This article propose a new construction of pentadiagonal matrix having centrosymmetric structure called...

**Proceedings Article**

## Investigating Students’ Errors in Graphing Polynomial Functions

Dahliatul Hasanah, Indriati Nurul Hidayah, Trianingsih Eni Lestari, Lucky Tri Oktoviana, Mohammad Agung

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...

**Proceedings Article**

## Analysis of Herd Immunity on the Mathematical Model of Covid-19 Transmission

Mia Siti Khumaeroh, Ahmad Firdaus

Many countries in the world, especially Indonesia, are still experiencing an increase number of Covid-19 cases despite the government has implemented many policies, such as an appeal for self-prevention, physical distancing, quarantine and large-scale social restrictions (LSSR) in several areas. Besides...

**Proceedings Article**

## Analyzing of Student’s Mathematical Reasoning Ability in Solving Mathematical Problem Based on Higher Order Thinking Skill (HOTS)

Susi Herawati, Puspa Amelia

In this paper, we consider to analyzed the mathematical reasoning ability of students in solving mathematics problem based on Higher Order Thinking Skill (HOTS). The method of this research is qualitative descriptive. This research consisted of 12 subject. Based on the analysis that mathematic reasoning...

**Proceedings Article**

## Pre-Service Biology Teachers’ Attitudes Towards Math: Using the Covid-19 Case in Calculus Course

Kimura Patar Tamba

Mathematics, especially calculus, cannot be separated in the field of biology. Mathematical abilities are essential in understanding biological phenomena. However, pre-service biology teachers’ attitudes toward math tend to be negative. For this reason, an interdisciplinary approach is needed so that...

**Proceedings Article**

## High School Students’ Perceptions Towards Quiz-Based Smartphone Learning Management System (S-LMS) as Learning Evaluation Media

Egha Alifa Putra, Elah Nurlaelah

A smartphone-based evaluation media learning management system (S-LMS) is an application that supports teaching and learning activities and online evaluation. S-LMS media is the development of conventional evaluation media using smartphones and internet networks. The purpose of writing this article was...

**Proceedings Article**

## Prediction of Future Insurance Premiums When the Model is Uncertain

Tri Andika Julia Putra, Donny Citra Lesmana, I Gusti Putu Purnaba

It is an important task for an actuary in determining an appropriate premium price for each customer with different risks and characteristics. The purpose of this study is to determine the best model for pure general insurance premiums and variables that can affect the amount of pure premiums. One of...

**Proceedings Article**

## E-Learning-Based Task Design for Developing Mathematics Instructional Tools Containing 4C Skills

Dini Kinati Fardah, Pradnyo Wijayanti, Ismail, Susanah, Masriyah

The challenge for teachers during this pandemic is to continue to provide quality learning for their students. All forms of learning that were initially carried out face-to-face must now turn to online learning. One form of learning that is considered effective to be given online is by giving powerful...

**Proceedings Article**

## Estimation of Average Value at Risk (AVaR) on Sharia Joint-Stock Index Using Glosten, Jaggnathan and Runkle (GJR) model

Sri Muslihah Bakhtiar, Ermawati, Ilham Syata, Wahidah Alwi, Risnawati Ibnas, Sri Dewi Anugrawati

The average value at risk (AVaR) is a measuring tool used to assess the worst loss experienced by an investor on a portfolio investment at a certain time. Furthermore. AVaR’s level of confidence needs to fulfill all the axioms regarding the nature of risk for risk-varse investors. This is because the...

**Proceedings Article**

*Gedhek*, When Culture Teaches Mathematical Concepts

Rachmaniah M. Hariastuti, Mega T. Budiarto, Manuharawati Manuharawati

Gedhek, a wall material for Using’s house, which is still used in Banyuwangi, Indonesia. The existence of gedhek in The Banyuwangi Community has never been associated with school knowledge. This makes gedhek known only as objects that are dividing the house (wall). Even though the process of making up...

**Proceedings Article**

## An Analysis Conceptual Understanding and Student’s Learning Self-Reliance in the New Normal Era Assisted by Photomath on SLETV Material

Nurhayati, Rofiroh, Desi Riski

This study is purposed to determine the student’s conceptual understanding and learning self-reliance in New Normal era assisted by Photomath on SLETV materials. This study implements quantitative approach of quasi-experimental design and One Group Pre test-Post test Design. The population of this study...

**Proceedings Article**

## Mathematical Representation of the Grade 11 of Senior High School Students in Solving Linear Programming Questions Based on David Keirsey’s Personality Type

Didik Sugeng Pambudi, Randi Pratama Murtikusuma, Dinawati Trapsilasiwi, Ervin Oktavianingtyas, Inge Wiliandani, Tiara Prita Ningrum

The aim of this study is to define the student mathematical representation of Grade 11 high school in solving linear programming questions based on David Keirsey’s personality type. This research were analyzed through a qualitative description. The research was conducted at Senior High School 1 Jember....

**Proceedings Article**

## The Effect of E-Learning Towards the Implementation of Self-Regulated Learning (SRL) to the Students of Mathematics Education Study Program at Almuslim University

Rahmi Wahyuni, Nurhayati, Jasmaniah

The purposes of the research is to know the effect of the implementation of e-learning toward Self-Regulated Learning (SRL) to the students of math at Almuslim University. The research used was a quasi-experimental research instrument in the form of a questionnaires sheet. The subject of this research...

**Proceedings Article**

## Developing Cultural Context Teaching Material of Geometry with GeoGebra to Increase Students’ Higher-order Thinking Skill

Juliana M.H. Nenohai, Ofirenty E. Nubatonis, Damianus D. Samo

The purpose of this research is to develop teaching material of cultural context geometry with GeoGebra which is valid, practical and effective based on the theoretical reviews and its support to enhance higher-order thinking ability. This study is a research and development (R & D) that was developed...

**Proceedings Article**

## Learning Mathematical Modelling: Junior School Student’s Argumentative Ability Through a Visual-Formed Problem

Eka Nanda Azer Rolan, Darmawijoyo, Indaryanti

This paper was to describe junior high school students’ argumentative ability mathematically using a visual-formed problem. The type of this research was descriptive with a qualitative approach. The subjects of this research were 19 students of the 7th grade-student of SMPN 6 Inderalaya Utara. A post-test...

**Proceedings Article**

## Learning Mathematical Modelling: How to design visual-formed Student’s Worksheet Using Traditional Food Context

NP Setiawati, Darmawijoyo, Y Hartono

This article studied designing a Visual-formed Student’s Worksheet the traditional food context under a mathematical modelling framework. This article only discusses the preliminary stages of the developed students’ worksheet. The preliminary stage covers two steps; there are analysis and design steps....

**Proceedings Article**

## Learning Mathematical Modelling: How to Design Visual Formed Students’ Worksheets Problem

Dwi Oktalidiasari, Darmawijoyo, Somakim

This article discusses the development of mathematical modeling student’s worksheets with the context of fuel purchase. Design research methods with a development study type was used in the research. The student’s worksheet’s prototype which fulfills the six principles of designing mathematical modeling...

**Proceedings Article**

## Designing an Interactive Learning Media Based on Mathematical Modelling Framework

H Zulfitri, Darmawijoyo, Hapizah

This article studies designing an interactive learning media based on a mathematical modelling framework. This article only discusses the preliminary stage or the initial stage in developing interactive learning media using design research. The preliminary stage covers two steps; there are analysis and...

**Proceedings Article**

## Study of the Brand and Bound Algorithm Performance on Traveling Salesman Problem Variants

Sapti Wahyuningsih, Dwi Retno Sari

Traveling salesman problem (TSP) can be applied to distribution problems, namely determining the minimum route from the depot to all customers exactly once and back to the depot. Some constraints can be added to the problem such as time constraints, additional salesmen on the route that is passed, the...

**Proceedings Article**

## The Missing Link Between the Fraction Concept and Its Representation

D A Oktafiana, H E L Tobing, Y Mariani, E Marlinda, Ismaini, L Asri, Darmawijoyo, Somakim

This paper was to describe primary and junior high school students’ perceptions of the fraction concept through their representations. The subject of this research was the 5th grade and 7th-grade students. This research revealed that students who studied varying images could be used to construct the...

**Proceedings Article**

## Learning Mathematical Modelling: What Advantages a Visual-Formed Problem Against Problem-Solving Skills of Junior High School Students?

SS Wati, Darmawijoyo, Hapizah

The purpose of this research is to describe the mathematical problem-solving skills of Junior High School students through visual question-based mathematical modeling learning. This was descriptive research using a qualitative approach. The subjects were students grade VII/2 of SMP N 6 Indralaya Utara....

**Proceedings Article**

## On High School Students’ Communication Skill in Proof-Based Learning

D Ihdayani, Y Hartono, C Hiltrimartin, J Araiku

This research aims at describing students’ mathematical communication skill through proof-based learning. This research was conducted at a senior high school in Bangka Belitung province involving 29 students. The instructional process and data collection were conducted online using Zoom Cloud Meeting...

**Proceedings Article**

## Analysis the Increment of COVID-19 Cases in Indonesia with One of Multivariate Markov Chain Model Parameter

Annisa Martina

The global cases of COVID-19 pandemic extensively increase as in Indonesia as the first two confirmed (positive) cases were reported in 2nd of March 2020 and followed by the first mortality case in 9 days afterwards, 11th of March 2020. In latest situation, the last data collection by author in 5th of...

**Proceedings Article**

## Learning Mathematical Modeling: The 7^{th} Grade-Students Skills in Solving Inverse Proportion Visual-Formed Problem

Yenny Silviana, Darmawijoyo, Ruth Helen Simarmata

This research aims to determine the 7th grade-students skills in solving the inverse proportion visual-formed problem through mathematical modeling learning. This research type was descriptive research using a qualitative approach. The subjects of this research were 19 students of the 7th grade-student...

**Proceedings Article**

## Learning Mathematical Modeling: How is Junior High School Students’ Motivation Through Visual_Formed Problems?

F Arni, Darmawijoyo, R. H Simarmata

The purpose of this descriptive research was to see the effects of visual-formed problems on junior high school students’ motivation to learn mathematics using a mathematical modeling framework measured using several learning motivation indicators. This research was conducted to 27 students grade VII.2...

**Proceedings Article**

## Using the Rasch’s Partial Credit Model to Analyze the Quality of an Essay Math Test

Sapti Wahyuningsih

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...

**Proceedings Article**

## Ethnomathematics

### Electronic Math Module Based on Madura Batik in Improving Creative Thinking Skills

Rozie Fachrur, Wulandari Rika, Ningsih Puji Rahayu

Creative thinking skill is one of the important competencies in mathematics that must be possessed by students as a provision for life in the future. But in reality, it is not easy for a teacher to explain for students in primary schools. Through linking the existing cultures around students, Madura...

**Proceedings Article**

## Development of Discrete Mathematics Learning Content Using Google Classroom in Mathematics Education Students

Nirfayanti, Sugian Nurwijaya, Suarti Djafar, Reski Ramdani, Nely Salu Padang, Ernawati

The type of research used was development research that aims to develop learning content in discrete mathematics courses that are valid, practical, and effective for use in Mathematics Education students. The subjects in this study were students who programmed discrete mathematics courses in the odd...

**Proceedings Article**

## Students’ Digital Thinking Skills in Solving Mathematics Problems

N K Sari, M T Budiarto, K M Rozhana

This study aims to describe the level of students’ digital thinking skills in solving mathematics problems in terms of 21st – century digital skills, referring to the eight levels of digital competence by prioritizing the cognitive domain of students in their measurement. Data collection was carried...

**Proceedings Article**

## Intuitionistic Anti Fuzzy Vector Spaces with Respect to t-norm and t-conorm

Ongky Denny Wijaya, Abdul Rouf Alghofari, Noor Hidayat

In this paper, we introduce about intuitionistic anti fuzzy vector spaces with respect to t-norm and t-conorm (IAFVSTC). We discuss some properties of IAFVSTC. We investigate IAFVSTC together with characteristic function intuitionistic fuzzy sets (IFS). We obtain properties of some operation and relation...

**Proceedings Article**

## Modeling Cabbage Production in Malang East Java with GSTAR Approach

Muhammad Syahfitra, Ni Wayan S. Wardhani, Atiek Iriany

Based on the Directorate Report General’s Horticulture, the contribution of vegetable horticulture agriculture tends to increase, where the GDP of vegetable horticulture has increased by 9.86%. In 2016, cabbage is a vegetable horticultural commodity that has the highest production amount in Indonesia,...

**Proceedings Article**

## Ideal Generated by The Coefficient of a Polynomial Over ℤ_{k}, k > 1

_{k}

Larasati Onna Roufista, Indriati Nurul Hidayah

Let ℤk, k > 1, k ∈ ℕ be a commutative ring with unity, polynomial f = a0 + a1x + ⋯ + anxn ∈ ℤk[x], ai ∈ ℤk. We can construct c(f) = 〈a0,⋯,an〉 be an ideal of ℤk generated by a0,⋯,an. If (a0,⋯,an) = 1 or ai unit of ℤk for i =0,…,n, then c(f) = ℤk, for k composite. For k is prime, because all of the...

**Proceedings Article**

## The Girth of the Total Graph of ℤ_{n}

_{n}

Rafika Dwi Any, Indriati Nurul Hidayah

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...

**Proceedings Article**

## Learning Mathematical Modeling: Analysis of Mathematical Reasoning Skills of Junior High School Students Through a Visual-Formed Problem

Intan Sahara, Darmawijoyo, Yusuf Hartono

This research aims to describe secondary school students’ mathematical reasoning skills through visual-formed problem under a mathematical modeling framework. This research involved 19 seventh grade students of SMPN 6 Indralaya Utara. Data were collected through a test and interview. Result show that...

**Proceedings Article**

## Analysis of Junior High School Student’s Mathematical Reasoning Ability in Solving Non-routine Problems on Material of Two-variable Linear Equation Systems

Nurul Pratiwi, Nyimas Aisyah, Ely Susanti, Weni Dwi Pratiwi

Reasoning ability encourages students to think logically, so it is a very important part in learning process. This qualitative descriptive study aims to determine the mathematical reasoning ability of Junior High School students in solving non-routine problems of the two-variable linear equation systems...

**Proceedings Article**

## Ordered Left Almost Hyperring

A M Muftirridha, A R Alghofari, N Hidayat

In this paper, we introduce the concept of left almost hyperring (R, ⊕, ⊗) together with a partial relation order ≤ such that satisfies some conditions. This structure (R, ⊕, ⊗, ≤) is called by ordered left almsot hyperring (LA-hyperring). Further, we study some useful contiditons for ordered LA-hyperring...

**Proceedings Article**

## Practical Analysis of Differential Equation Module to Improve Student’s Logical Thinking Ability

Mujahidawati, Gugun M. Simatupang, Novferma, Ari Frianto, Febbry Romundza

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...

**Proceedings Article**

## Investigating Student’s Mathematical Reasoning Ability by Using PMRI Based on Emergent Modeling

Sitepu Meidiana, Aisyah Nyimas, Indaryanti, Weni Dwi Pratiwi

Mathematics and reasoning are two things that cannot be separated because reasoning is needed to understand mathematics and reasoning can be trained through learning mathematics. The purpose of this study was to determine the mathematical reasoning abilities of junior high school students on a two-variable...

**Proceedings Article**

## Experimentation of Brain Based Learning Model Based on Lesson Study Learning Community Towards Students’ Reasoning Ability on Sequences and Series Material

Hobri, Ervin Oktavianingtyas, D Trapsilasiwi, Randi Murtikusuma, Didik Pambudi, Noor Amalia

The purpose of this research is to know How to process of teaching learning using Brain Based Learning which based on Lesson Study Learning Community as well the effect on students’ reasoning abilities on the material sequences and number series at SMAN 5 Jember. The kind experiment that is used is mixed...

**Proceedings Article**

## The Impact of Using a Single Image in a Representation on a Misconception of Fraction Concept

Aisyah Turidho, Indah Widya Astuti, Kori Auga Islamirta, Selly Dian Utami Sitio, Yulianita Maharani, Darmawijoyo, Somakim

This research aims to describe the impact of using a single image in representation on understanding the concept of fractions. The subjects in this study were six students in grades 4-7. The data collection technique used in this research is interviews conducted on research subjects one by one. Students’...

**Proceedings Article**

## Learning by Doing in Mathematics Class of Fisheries Agribusiness Student in Agriculture Polytechnics Kupang

Sri Imelda Edo, Wahyuni Fanggi Tasik, Yusuf Kamlasi

Mathematics is an important subject for understanding almost every subject whether science and technology, medicine, the economy, or business and finance. Previous research shows that many agricultural students have deficient mathematical skills for their future profession after their education. They...

**Proceedings Article**

## Validation of Teaching Materials for the Blended Learning Model of Applied Mathematics for Polytechnic Student

I Ketut Darma, I Gede Made Karma, I Made Anom Santiana

This study aims to determine the level of validity of applied mathematics electronic teaching materials for the blended learning model in the form of modules (E-Modules) and student activity sheet (E-SAS). The research used the 4D model development method, carried out at the Politeknik Negeri Bali (PNB)....

**Proceedings Article**

## Analysis of Introverted Students’ Error Based on Newman in Solving Arithmetic Sequences and Series Problems

D Trapsilasiwi, R P Murtikusuma, Hobri, E Oktavianingtyas, I Wiliandani, D M Widodo

Mathematics is a universal field of science and has a very important role in human life. However, facts in the field show that students’ reasoning power is still weak in the learning process of mathematics. It is because of one of the Abstract characteristics of mathematics. This feature causes many...

**Proceedings Article**

## Approach of Cobb Douglas Function Into Scheme of *Ijarah Muntahiya Bittamlik* (IMBT)

Rini Cahyandari, Asep Solih Awalluddin, Acep Hidayat

Ijarah Muntahiya Bittamlik (IMBT) is a scheme for the sale of goods or services that combines a sale and purchase contract and a lease agreement ending with the ownership of the goods or services that are the object of the contract in the hands of the tenant. In the IMBT scheme, the tenant makes payments...

**Proceedings Article**

## Estimating Lookback Price Using Monte Carlo Simulation and Binomial Lattice

Fauziah Sudding, Yusuf Kalla

Lookback options are path-dependent option, whose payoffs depend on the maximum and minimum value of the underlying assets throughout the duration of the contract. Since the payoffs are calculated based on the asset price during the lifetime of the option, there are no analytic formulas yet to evaluate...

**Proceedings Article**

## What Preschool Age Child’s Perceptions About Division in Fair Sharing

Nety Wahyu Saputri, Theresia Ingga Sari, Sahala Martua Ambarita, Rafika Riana Chaniago, Yatini, Dwi Oktariani, Darmawijoyo, Somakim

This study aims to describe the early mathematic skills of preschoolers in the understanding division through the idea of “fairness”. The idea of fairness was familiar to children before the division was first encountered formally. The subjects in this study were three children aged 3-5 years. Based...

**Proceedings Article**

## Analysis of Longitudinal Regression Model Using the Generalized Estimating Equation (GEE) for the Child Welfare Composite Index (CWCI) in West Java

Asep S. Awalluddin, Inge Wahyuni, Hilda Nurmuslimah

The purpose of this study was to determine the Generalized Estimating Equation (GEE) analysis as one of the longitudinal data regression methods for composite index data on children’s welfare (CWCI) in West Java Province. GEE analysis uses four different correlation structures to determine the best model,...

**Proceedings Article**

## ARIMA Model for Forecasting COVID-19 in East Java

E S Nugraha, A H Ulya

Coronavirus is a group of viruses that can cause disease in both humans and animals. The newly discovered coronavirus triggers COVID-19 disease. COVID-19 is now a pandemic that is emerging in many countries around the world, including Indonesia. Several sectors have been affected as a result of this...

**Proceedings Article**

## Determinants of Stunting Among Under-Five Years Children Using the Ordinal Logistic Regression Model

Marisa Rifada, Nur Chamidah, Putri Nuraini, Faris Dwiki Gunawan, Lailatul Muniroh

Stunting is a kind of chronic nutritional problem among under-five years children that characterized by a shorter height compared to other children of their age. The ordinal logistic regression is one statistical method that used to analyze the ordinal response variable with three or more categories...

**Proceedings Article**

## Fuzzy Left Almost Semihyperring

S I Rahman, N Hidayat, A R Alghofari

The left almost semihyperring (LA) is an algebraic hyperstructure satisfying two axioms, these are the left inverse hyperoperation and the distributive axiom between multiplication and addition hyperoperation. In this article, the concept of fuzzy sets is applied to these structures so that we get a...

**Proceedings Article**

## Performance Evaluation of New Ranking Function Methods with Current Ranking Functions Using VAM and MM-VAM

Muhtarulloh Fahrudin, Atia Nuraini

This paper discusses the optimal solution for specific types of optimization problems called fuzzy transportation problems using pentagonal fuzzy numbers. Cost value, supply, and the demand for fuzzy transport issues are taken as fuzzy numbers pentagonal. Pentagonal fuzzy numbers are converted to crisp...

**Proceedings Article**

## Web Application Development for Inferential Statistics using R Shiny

Neva Satyahadewi, Hendra Perdana

The rapid development of world technology has a major influence in the world of education and can be used to support learning activities. Regarding the rapid advancement of computers, statistics learning can be done with many online computer simulations. Computer simulation and visualization in supporting...

**Proceedings Article**

## Analyzing Misconception of Exponent for High School in Makassar

St. Nur Humairah Halim, Randy Saputra Mahmud, Sitti Rahmah Tahir, Abdul Gaffar, Sri Wulandari, Andi Trisnowali

This study aims to analyze the misconceptions experienced by students in exponential material. This research was conducted in Class X IPA 1 SMAN 4 Makassar in the odd semester 2019/2020 academic year. The subjects in this study were three students who were selected based on the type of misconception....

**Proceedings Article**

## E-Learning Based Mathematics Learning Media

### An Empirical Study on Operations Research in the COVID-19 Pandemic in Makassar City of Indonesia

Agus Budi Hartono, Georgina Maria Tinungki, Powell Gian Hartono, Lydia Rosintan Simanjuntak, Susy Muchtar

The study aims to determine the impact and constraints of the e-learning learning system for Operations Research subject during the COVID-19 pandemic. This research is a descriptive qualitative study that focuses on evaluating learning using online media. This study’s population was the 5th-semester...

**Proceedings Article**

## Overcoming Overdispersion on Direct Mathematics Learning Model Using the Quasi Poisson Regression

Powell Gian Hartono, Georgina Maria Tinungki, Jakaria Jakaria, Agus Budi Hartono, Patrick Gunawan Hartono, Richy Wijaya

The study aims to overcome the overdispersion in the final exam score of Calculus subject. The occurrence of a gap in the score is inseparable from the influence of internal factors and external factors. The internal factors are factors that originate within students themselves. In contrast, external...

**Proceedings Article**

## Analysis of Ability for Understanding the Basic Concepts of Probability Theory

Georgina Maria Tinungki, Budi Nurwahyu

This study aims to analyse the skills to understand mathematical concepts in the Probability Theory subject. As a scientific discipline, Probability Theory is one of the statistics study program subjects that require mathematical skills to learn. One of the skills needed for learning is the skill of...

**Proceedings Article**

## Cognitive Proficiency Analysis of Adventist High School Students Tenth-Grade Aliciously Solve Linear Equations System of Two Variables Reviewed of Gender

Mey Chyntia Yesaya, Wilmintjie Mataheru, Christina M Laamena

Cognitive ability in this research, are steps that students do in solving problems that deal with problem solving. Cognitive abilities seen from the cognitive level of remembering (C1), understanding (C2), applying (C3), analyzing (C4). The study aims to describe a student’s cognitive capability in gender...

**Proceedings Article**

## Mathematical Modelling of Schistosomiasis Transmission Dynamics in Traditional Cattle Farmer Communities

Wahyudin Nur, Trisilowati, Agus Suryanto, Wuryansari Muharini Kusumawinahyu

In this work, a deterministic mathematical model of schistosomiasis transmission dynamics is discussed. In rural areas, many people work as a cattle farmer. Cattle farmers in endemic areas are very susceptible to schistosoma worm infection. To study the dynamics of schistosomiasis spread in traditional...

**Proceedings Article**

## First Year Undergraduate Mathematics Students Error Analysis on Solving Rational Inequality

Mohammad Agung, Indriati Hidayah, Trianingsih Lestari, Lucky Oktoviana, Dahliatul Hasanah

Solving a rational inequalities is difficult for mathematics students. Many of them make a mistake when solving such problem. This research aimed to investigate and categorize a first year mathematics undergraduate student error when solving rational inequalities problem. The data were obtained from...

**Proceedings Article**

## Genetic Algorithm Approach in Forming the Optimal Portfolio of Issuer Companies with Dividend Distribution Criteria

Izma Fahria, Elyas Kustiawan

Investing in the capital market for some investors is a challenge in itself. Investors are required to be able to determine the right combination and proportion of shares when they want to place a number of funds in each share that make up the optimal portfolio. The solution to the optimal portfolio...

**Proceedings Article**

## Generalized Method of Moment Estimation Method Lagrange Multiplier Test for Simultaneous Spatial of Dynamic Panel Data

Dwi Endah Kusrini, Brodjol. S.S. Ulama, Mutiah Salamah Chamid

In recent developments, the panel data spatial model has penetrated into simultaneous models that do not only move in single models, where the development of this model also indirectly makes the parameter estimation method move in a more complex direction in terms of mathematical proof, also in terms...

**Proceedings Article**

## The Effect of Realistic Mathematics Education and Problem Based Learning Model on Mathematics Problem Solving Ability in Terms of Precondition Mathematics Abilities

Anderson L Palinussa, T C Dias, Darma A Ngilawajan

The purpose of this study is to compare two treatments, namely the realistic mathematics education approach (RME) and problem-based learning (PBL) towards students’ mathematical problem-solving abilities. To obtain complete information about the comparison of the two models, we also used the non-treatment...

**Proceedings Article**

## The Effect of Contextual Teaching and Learning Model Based on Ethnomathematics on the Students’ Interest and Learning Outcomes of Class XII SMA Negeri 2 Salahutu in Three-Dimensional Materials

C Agustis, W Mataheru, N C Huwaa

This study aims to determine the effect of Contextual Teaching and Learning (CTL) model based on ethnomathematics on the students’ interest and learning outcomes of class XII SMA Negeri 2 Salahutu in three-dimensional materials. This study used experimental research with Quasi Experimental as the research...

**Proceedings Article**

## Introduction to Problem Solving Based Learning Model

Tanwey Gerson Ratumanan, Carolina S. Ayal

Studies on innovative learning model are currently being carried out by experts to contribute to improving the quality of education and learning. Problem Solving Based Learning Model (PBPM) is one of the new model that the author has developed since 2017-2020. From the development results, this model...

**Proceedings Article**

## Influence of the Learning Model Using a Geogebra - Based Software on the Potential Mathematical Problem Based on a Self Confidence Student on the Cone Slices

John N. Lekitoo, Tanwey G. Ratumanan, Carolina S. Ayal

This study aims to: (1) determine whether there is a difference in the mathematical solving abilities of students of class XI MIA SMA Negeri 4 Ambon who are taught using the think pair share (TPS) type of cooperative learning model assisted by geogebra software, the problem based learning model (PBL)...