# Proceedings of the SEMANTIK Conference of Mathematics Education (SEMANTIK 2019)

29 articles
Proceedings Article

## Look Same but Different: Misconceptions in Linear Combinations

Fauzi Mulyatna, Arfatin Nurrahmah, Seruni
This article describes misconceptions in a linear combination, answer with the correct conclusion but of workmanship that contains an improper process. In special cases, namely a symmetric matrix, the matrix is formed of scalar multiplication on a linear combination that generates an answer, which is...
Proceedings Article

## Community Service: Processing Data Statistically

Diah Oga Nusantari, Deni Nasir Ahmad, Ihwan Zulkarnain
Statistics is a part of mathematics that discusses data processing. An institution needs statistics to process and manage data so that information can be conveyed clearly. Technological developments make calculations easier with applications. This article describes the utilization of statistics for institutions...
Proceedings Article

## Critical Thinking Disposition: The Persistence of Skeptical Students in Completing Mathematical Problems

Purna Bayu Nugroho, Toto Nusantara, Abdur Rahman As’ari, Sisworo, Ratih Handayani
The skeptic in dealing with a problem is not very useful if it is not followed by the persistence to find the correct answer and solve it. This research is qualitative research with an exploratory descriptive type. The results of this research indicated that skeptics could make students apathetic, pseudo...
Proceedings Article

## The k-Metric Dimension of Nk + Pn Graph and Starbarbell Graph

Citra Ayu Ratna Saidah, Tri Atmojo Kusmayadi
Let G be a simple connected graph with a set of vertices V(G) and set of edges E(G). The distance between two vertices u and v in a graph G are the shortest path length between two vertices u and v denoted by d(u,v). Let k be a positive integer, S ⊆ V with S is a k-metric generator if and only if for...
Proceedings Article

## On the k-Metric Dimension of a Barbell Graph and a t-fold Wheel Graph

Let G be a connected and simple graph with the vertex set V(G) and the edge set E(G). The set S ⊆ V (G) is called a k-metric generator for G if and only if for every two pairs different vertices u,v ∈ V(G), there are at least k vertices w1,w2,..,wk ∈ S such that d(u,wi) ≠ d(v,wi) for every i ∈ {1, 2,...
Proceedings Article

## Did Undergraduate Students Really Establish Reversible Reasoning When Faced With Inverse Function Problem Situations?

Muhammad Ikram, Hery Susanto, Purwanto, I Nengah Parta
The aim of this study was to investigate reversible reasoning, particularly, mental action deployed by undergraduate students in problem situations of the inverse function. This case study compares the reversible reasoning of three high-achieving undergraduate students. These students were tested before...
Proceedings Article

## k-Metric Dimension of Generalized Fan Graph and Cm ∗2 Kn Graph

Let G be a simple connected graph with the vertex set V(G) and the set edge E(G). The set S ⊆ V(G) is called the k-metric generator on G if and only if every two different vertices in G are distinguished by at least k elements in S, in other words for every two different vertices u,v ∈ V(G), there are...
Proceedings Article

## Errors of High School Students Solve Double Discount Problems

Lydia Lia Prayitno, Purwanto, Subanji, Susiswo, Ninik Mutianingsih, Agus Prasetyo Kurniawan
Problem-solving is an integral part of the process of learning mathematics in schools that cannot be separated in daily life situations. One of the mathematical material that is found in a daily life situation is a discount. Shopping centers often give double discounts to their customers so the buyers...
Proceedings Article

## Development of Android-Based Mathematics Learning Media

Novi Ashari, Leonard, Huri Suhendri, Nurhayati, Syafa’atun Syafa’atun, Sri Adi Widodo
The purpose of this research is to develop an Android-based math learning media that can be accessed using smartphones. This research is research development and using ADDIE model development with 5 stages of development, namely analysis, design, develop, implement, and evaluation. This research has...
Proceedings Article

## Improvement of Students’ Ability With Mathematics Learning Innovation Based on Handphone Technology

M. Taufik Qurohman, Muchamad Sobri Sungkar, Taufiq Abidin
Assisted learning model of Handphone-Based Mathematics Learning Devices is expected to be able to provide solutions to students to improve their attractiveness and problem solving abilities. The purpose of this study is to optimize the learning model of the Handphone-Based Mathematics Learning Device....
Proceedings Article

## Critical Thinking Skills of Students in Teaching Mathematics Using Model Problem-Based Learning

Iskandar Zulkarnain, Elli Kusumawati, Siti Mawaddah
This study aims to describe the critical thinking skills of class VII B students of SMPN 1 Banjarmasin in learning mathematics using the model of problem-based learning (PBL) in the 2018/2019 study year. The method used in this research is the quantitative descriptive method. The object of research is...
Proceedings Article

## Prior Knowledge in Mathematics Learning

Eka Fitria Ningsih, Endah Retnowati
Learning is the process of building new knowledge by linking existing knowledge. Meaningful learning is learning that maximally utilizes prior knowledge of students. This article aims to explore how to use initial knowledge to build new knowledge on the material of the greatest common factor. The description...
Proceedings Article

## GeoGebra-Assisted Problem Based Learning to Improve Mathematical Problem Solving Ability

Ari Septian, Sarah Inayah, Ramdhan Fazrianto Suwarman, Rendi Nugraha
The role of computers becomes an inseparable part of daily life, including as a media for learning mathematics, including making it easier to visualize 3D objects (building three-dimensional space). GeoGebra is software that can be used for mathematics education by combining geometry, algebra, and calculus....
Proceedings Article

## Developing Circle Module Based on Van Hiele Theory

Christina Kartika Sari, Isnaeni Umi Machromah, Zakkiyah
The van Hiele theory offers learning phases as an effective way to be applied in geometry classes. Because there is the difference of students’ ability in solving circle geometry problems, a module can be used to deal with. This article describes the developing process and validating of circle module...
Proceedings Article

## The Teacher’s Critical Thinking Skills in Solving Mathematical Problems

Nonik Indrawatiningsih, Abdur Rahman As’ari, Luthfi Hakim
This study to describe the critical thinking skills of master students who are high school / high school / MA teachers being studied. This type of research is a descriptive study with a qualitative approach. Data was collected from the results of critical thinking skills tests and interviews. Furthermore,...
Proceedings Article

## Profile Reflective Thinking Ability of Vocational High School

Nunik Triharyati, Mardiyana, Triyanto
The aims of this research were to describe the reflective thinking abilities of the students in Grade XII of Vocational High School in Surakarta. This research used qualitative case study approarch. The data of research were tests and task based in interviews. Analysis of the results of written tests...
Proceedings Article

## The Enhancement of Students’ Mathematics Critical Thinking Ability Through Videoscribe Learning Multimedia

Kurniati, Zainal Abidin Arief, Gun Gun Gunawan
The background of this study is based on the fact that the achievement of high order thinking skills (HOTS)of students in Indonesia is still low. The aim of this study was to determine whether the use of videoscribe learning multimedia can improve the mathematics critical thinking abiliy of 11th grade...
Proceedings Article

## Emotional Intelligence and Positive Thingking in Mathematics Learning Achievement

Maya Nurfitriyanti, Indra Martha Rusmana
The purpose of this study was to determine: 1) the effect of emotional intelligence and positive thinking on mathematics learning achievement together, 2) the influence of emotional intelligence on mathematics learning achievement, and 3) the effect of positive thinking on mathematics learning achievement....
Proceedings Article

## Failure of Interpretation: Semiotic Representations in Fractional Problem Solving

Christine Wulandari Suryaningrum, Purwanto, Subanji, Hery Susanto
Semiotics is the study of signs. Signs are the result of thoughts used to find mathematical relationships with real-world objects and to represent abstract mathematical concepts. The purpose of this qualitative research is to analyze the failure of interpretation in the semiotic representation of elementary...
Proceedings Article

## Self-Assessment Through Diary Book for Elementary Students

Nelly Rhosyida, Trisniawati, Mahmudah Titi Muanifah
This study is aimed to find out about the ability of students’ self-assessment, especially towards learning mathematics through the use of diary books. This type of research uses quantitative descriptive research. This study uses instruments in the form of diary books, questionnaires, and interview guidelines....
Proceedings Article

## Commognitive Analysis of Students Difficulty In Solving Fractional Problems

Andika Setyo Budi Lestari, Toto Nusantara, Susiswo, Tjang Daniel Chandra, Muhammad Irfan
This study discusses the difficulties of elementary school students in completing fractional tasks. Fractions is one of the basic materials in mathematics for elementary school level. The theoretical framework used to analyze students’ difficulties in solving fractional tasks is the comognitive framework....
Proceedings Article

## Using the Set Theory Module in Think Pair Share Learning, Is It Effective?

Istiqomah, Denik Agustito
This study aims to determine the effectiveness of the use of set theory modules in Think Pair Share learning on independence and student learning outcomes. This research is a quasi-experimental research with Posttest-Only Control Design. The subjects in this study were students of the mathematics education...
Proceedings Article

## K-Affinity Propagation Clustering and GIS on Instagram Accounts of Tourist Destinations in Java

This research was conducted at the Department of Statistics of Indonesian Islamic Universities. The purpose of this study was to determine the general description of tourist destinations, the formation of tourist destination clusters, and the application of GIS. The tourist destination data used in this...
Proceedings Article

## The Role of Ethnomathematics in Welcoming the Society 5.0

Dafid Slamet Setiana
Efforting reduced the negative effect of the revolution industry, needed to inculcate noble cultural characters in adolescents trough implementation ethnomathematics in learning. Through ethnomathematics students not only understand mathematical concepts but also appreciate their cultures more and can...
Proceedings Article

## Profile of Students’ Error in Solving Mathematics Word Problems Based on PISA Frameworks

Budi Murtiyasa, Sri Rejeki, Naufal Ishartono
This study aims to analyse students’ error in solving mathematics word problems based on The PISA frameworks. This is a qualitative descriptive study involving 63 students with low, moderate, and high level of mathematics achievement from 2 schools in Surakarta. The data collection was conducted using...
Proceedings Article

## Can Kahoot Enchance Mathematic Disposition?

Zainnur Wijayanto, Betty Kusumaningrum
Kahoot is a game online that can applied in classroom using smartphone, computer, etc. This study aims to describe mathematical disposition of students by implement of Kahoot as game based learning in linear programming classroom. The subjects in this study as many 29 students. Subjects then answered...
Proceedings Article

## Development of M-Learning Media With Indonesian Realistic Mathematics Education’s Approach

Haris Kurniawan, Eva Susanti
This study aimed to develop a valid and practical M-learning based learning media using an approach of Indonesian Realistic Mathematics Education (PMRI). The study adopted Tessmer’s Development Research. The study produced an M-learning medium being able to lead students to go through the learning process...
Proceedings Article