Interpreting the slope of a straight line in kinematics graphs with school students

The interdisciplinary nature of knowledge is one of the objectives promoted in Colombia, fostering in students the ability to recognize that the curriculum does not work in isolation; if knowledge is complementary, its joint development leads to better academic performance. This research is oriented towards showing an application of the mathematical concept of the slope of the straight line in physics applications, favoring the understanding of the relationships between variables, as occurs with the graphs of kinematics. A group of eleventh grade students from a private educational institution filled in a questionnaire for data collection, based on three situations proposed to answer three open questions in which a reasonably justified answer was required. A part of the group correctly interpreted the graphs by describing the characteristics of the movement in each time interval, but only a few were able to associate the slope of the line as the velocity or acceleration as a function of the variables mentioned in the graph, although their argumentation was based on the angle of elevation of the line.

PENGARUH KECERDASAN LOGIS MATEMATIS DAN KEMANDIRIAN BELAJAR TERHADAP KEMAMPUAN PEMAHAMAN KONSEP MATEMATIS SISWA DALAM PEMBELAJARAN BERBASIS DARING

This study aims to determine the effect of mathematical logical intelligence and self-regulated learning on the ability to understand students' mathematical concepts in online-based mathematics learning. This research is survey research by giving a logical-mathematical intelligence test, a self-regulated learning questionnaire, and a mathematical concept understanding ability test to 142 X grade students in one of the Jakarta State Senior High Schools. Statistical analysis used in this study is multiple linear regression. Based on the results of hypothesis testing, it can be seen that there is an effect of mathematical logical intelligence and self-regulated learning together on the ability to understand students' mathematical concepts in online-based mathematics learning by 49.53%, there is an influence of mathematical logical intelligence significantly on the ability to understand students' mathematical concepts in online-based mathematics learning, and there is no significant effect of self-regulated learning on the ability to understand students' mathematical concepts in online-based mathematics learning.

Urban Spatial Structures From Human Flow By Hodge-Kodaira Decomposition

Human flow in cities indicates social activity and can reveal urban spatial structures based on human behaviours for relevant applications. Scalar potential is a mathematical concept, and if successfully introduced, it can provide an intuitive perspective of human flow. However, the definition of such a potential to the origin-destination flow matrix and determination of its plausibility remain unsolved. Here, we apply Hodge-Kodaira decomposition, in which a matrix is uniquely decomposed into a potential-driven (gradient) flow and a curl flow. We depict the potential landscapes in cities due to commuting flow and reveal how the landscapes have been changed or unchanged by years or transport methods. We then determine how well the commuting flow is described by the potential, by evaluating the percentage of the gradient component for metropolitan areas in the USA and show that the gradient component is almost 100% in several areas; in other areas, however, the curl component is dominant, indicating the importance of circular flow along triangles of places. The potential landscape provides an easy-to-use visualisation tool to show the attractive places of human flow and will aid in various applications in commerce, urban design, and epidemic spreading.

The improvement of mathematics understanding ability on system of linear equation materials and students learning motivation using geogebra-based educational games

The purpose of this research is to determine the improvement of students' mathematical understanding ability on a system of linear equations using GeoGebra-based game education. This research use quasi-experimental that was conducted on two classes of the school in Indonesia. Class X MIPA 4 as experimental class and X MIPA 3 as control class. Based on the results the average score of N-Gain value analysis, mathematical concept understanding ability in the experimental class is 0.55, and the control class average score is 0.30. Based on the calculation, the Asymp. Sig. (2 tailed) of 0.000 is obtained. Because the significance score is obtained less than 0.05, thus it is rejected and is accepted. So, it can be concluded that the improvement of students' mathematical understanding ability using GeoGebra-based game education is better than the improvement through ordinary learning. The learning motivation of students using GeoGebra-based game education as a positive learning media, but there is no relationship between learning motivation and students' mathematical understanding using GeoGebra-Based Game Education.

Analysis Of Ability to Understand Mathematic Concepts of SMP Students During Online Learning on Set Materials

The purpose of this study was to analyze the ability to understand mathematical concepts of junior high school students during online learning on set material. This type of research uses descriptive qualitative. The subjects of this study were grade VII students with a total of 10 students at SMP Negeri 1 Inuman, Kuantan Singingi Regency in the 2021/2022 academic year. The subject selection technique used is purposive sampling technique because the sample cannot be chosen randomly. The data collection technique used in this study was a written test. The questions given are in the form of 5 description test questions that have been prepared based on indicators of mathematical concept ability. The results obtained from this analysis are the ability to understand students' mathematical concepts when online learning is obtained that the ability of students in the high category is 1 student or 10% of the total number of students tested, categorized as sufficient there are 5 students or 50% of all students tested, and in the low category there are 4 students or 40% of the total students tested.

Analisis Kemampuan Pemahaman Konsep Matematis Siswa pada Pembelajaran Matematika Kelas XI IIS SMA PGRI 3 Padang

This research is motivated by the low ability of students to understand mathematical concepts in learning mathematics.The purpose of this study was to determine how thw mathematical ability of class XI IIS students at SMA PGRI 3 Padang. The subjects of this study were students of class XI IIS SMA PGRI 3 Padang, totalling 19 students. The research method used is descriptive method using a qualitative approach. The instrument used in this study was a test of the ability to understand concepts in the form of 4 questions in the form of descriptions and interview. The test results were analysed based on indicators of concept understanding. The results of this study indicate hat the results of data analysis on the ability to understand mathematical concepts of the 19 students tested obtained the total qualification score of 50% in the medium category. The qualifications for the total score of students mathematical concept understanding abilities based on the analysis of eachindicator on concept undestandig are as follow: on the indicator of restating a concept, 54% is in the medium category, classifying objects according to certain properties (according to the concept) is 82% are in the high category, providing examples and non-examples of the concept are 30 in the less category, presenting the concept in the form of a mathematical representation is 35% in the less category, developing necessary or sufficient requirements of a conceptis 73% in the medium category, and applying the concept or problem-solving algorithm is 24% in the lo category.

Development of an instrument to assess early number concept development in four South African languages

A recently published interview-based test, known by its partly German acronym, MARKO-D SA, is introduced in this article by way of a narrative of its development through various cycles of research. The 48-item test, in 4 South African languages, captures number concept development of children in the 6 to 8-year age group. The authors present their argument for the South African versioning and translation of the test for this country, where there is a dearth of suitable assessment instruments for gauging young children’s mathematical concept development. We also present the findings of the research that was conducted to standardise and norm the local version of the test, along with our reasoning about the theoretical strength of the conceptual model that undergirds the test.

Mobile Computing as a Support to Teach the Concept of Function

We make a proposal to teach the concept of function using mobile computing. This proposal is based on research that has support in education theories such as Constructivism and Problem Solving Learning. In the first part we show the difficulties that undergraduate Computer Science students have in the first semester of Engineering while working with that mathematical concept. And application to be used by the students anywhere and anytime in mobile devices is designed that process data and is intended to show them the concept of function in a problem solving situation. The proposed activities are part of the education methodology used in the research and within this paper we show the diagnostic questionnaire as one of the methodological tools and its results supporting the designed activities and its application to mobile devices

Use of Virtual Reality in Teaching Fractions at Elementary Level

The learning difficulties of the mathematical concept of fraction is a topic that has been studied by different mathematical educators, but still is a relevant topic today, because despite the proposals that have been made to improve learning, they have not been used for all teachers besides those few that are involved in the use of the technology. Besides that there is little educational software that is based on research and is validated to be taken to the classroom. This article shows a virtual system that has been created for the student to interact with it in order to connect his knowledge with his play skills, skills of discovery, reasoning, communication among others and may have a significant learning of fraction

Pemanfaatan Alat Peraga Dakota untuk Menguatkan Pemahaman Konsep Matematika Siswa

The purpose of this research is to find out how the students' mathematical understanding of the concepts before and after the use of the Dakota defense equipment and whether the Dakota defense apparatus affects the students' understanding of the mathematical concepts in MIS.Research of the quasi-experiment of the kind of Nonequivalent Control Group Design.In this study the sample used was a class IV A as an experimental group and a class IV as a control group with 15 students each. The sample was taken using a Simple Random Sampling technique with a method of drawing. Data were analyzed using percentages and T test, namely SPSS. The results showed that student’s understanding of mathematical concepts before and after using the Dakota teaching aids was increasing, this was evidenced by the percentage of understanding mathematical concepts before using the teaching aids was 34,33%, while after using the Dakota teaching aids the percentage of understanding mathematical concepts wa 80,6%. As for the t-test, it was 4,267 with a sig (2-tailed) of 0,000. Since sig got a < 0.05 so significantly then we can assume Ha accepted that there is an influence of Dakota's defense on the student's understanding of the mathematical concept at MIS Integrated Langsa