MatEduc TeachPrac

This article reports a study about mental calculation in a group of elementary school students. Mental arithmetic, nowadays, is recognized as a subject of interest by several authors and educational systems. The latter have tried to design programs to develop it according to the flexibility of strategies, mathematical concepts, properties of the number system, and number sense. Several authors point out that tasks or activities should be incorporated with the intention of attending to this priority and not under a memoristic or strict teaching. In this sense, this qualitative research aimed to explore and describe the processes, strategies, operations, and skills (Rathgeb-Schnierer and Green 2019) used by six students studding sixth grade primary school in Puebla, Mexico. These students were 11 years old at the time they used the Broken Calculator application as a milieu to solve tasks; and it is shown that different strategies are developed when faced with the same tasks: some are predominant, others with a simple level of complexity, and how different calculation trains are elaborated according to the mastery of the strategies.

Critical and logical thinkers are in high demand in the workforce. Vocational students need to possess this knowledge if they plan to work after graduation. Nevertheless, there aren't many Math Logic modules designed for students in vocational schools that have this ability. The goal of this research is to provide module that facilitating students at vocational schools to improve their critical thinking abilities. Utilizing 4-D Thiagarajan steps, this study using R&D method. Critical thinking ability tests, teacher and student answer questionnaires, and expert validation sheets are the instruments employed. Both quantitative and qualitative analysis was done on the data collected from the instruments. The data processing results demonstrate: 1) valid modules, as determined by validity test results from media, practitioners, and subject matter experts; 2) highquality modules, as determined by student and teacher response results; and 3) useful modules, as determined by effectiveness test results in the classroom. The module can be utilized for instruction at vocational schools.

Recently, the widespread use of computer technology and the development of the internet have facilitated access to information. However, this has also increased the importance of information security. Public and private sector organizations need robust databases to protect their digital assets. For this reason, many security-oriented products and projects are being developed. Especially with the rapid progress of the internet age and the increasing importance of digital security, the field of cryptology has attracted great interest. Cryptology is the science of ciphers. The infrastructure of cryptology is based on mathematics. In order to ensure the security of information in the digital environment, a strong database is needed. This is achieved with strong encryption algorithms. Algorithms that incorporate the principle of randomness and allow repeating letters to take different values are stronger against external attacks. For these reasons, the aim of this study is to create a cryptology algorithm that is resistant to password cracking techniques, adopts the principle of randomness, contains mathematical formulas and has a decryption. In this study, prime numbers, pi number, linear encryption technique and matrices are used. In the encryption algorithm, it is aimed to adopt the principle of randomness with prime numbers and pi number. By using linear encryption technique and matrices, new sequence numbers of each letter were obtained, and it was aimed to strengthen against the frequency analysis method, which is one of the password cracking techniques, by ensuring that the repeating letters take different number values.

In order to gain a deeper understanding of the application effect of Outcome-Based Education (OBE) concept in higher education, this study chose the university's Higher Mathematics course as the research object. Take Finance Class 1 as the experimental group and Finance Class 2 as the control group, and randomly select 30 students from each class for the study. The independent sample t-test method was used for hypothesis testing, and normality and homogeneity of variance tests were used to make sure the reliability of the data and credibility of obtained results. These results show that the experimental group students have significantly higher grades than the control group, indicating that in the classes that adopt the OBE concept for teaching reform, students have achieved significant improvement in grades. This discovery not only validates the effectiveness of the OBE concept in the field of education, but also provides new ideas and methods for educational reform. By cultivating students' comprehensive qualities such as problem-solving ability, innovation ability, and teamwork skill, the OBE concept helps to improve their academic performance and promote their comprehensive development.

The purpose of this research is to provide alternative mathematics learning facilitated by optimal use of technology to produce good student learning outcomes. Some of the technology-based media or platforms used in this research are WhatsApp Group, Google Meet, Pen Tablet, Screen Recorder, YouTube, and Learning Management System. This research is a descriptive case study that aims to be descriptive and provide a comprehensive picture related to technology-based mathematics learning in calculus course. The subjects in this research were 39 students of Informatics Engineering, University of Mataram, Semester I. The data obtained in this research were analyzed quantitatively using descriptive methods. Data on learning outcomes was obtained from tests that were carried out three times during lectures. The results showed that at the end of the lecture, the final score mean of students reached 80.40, with 100% of students meet the pass criteria. This shows that learning in calculus course by utilizing technology really helps lecturers and students optimize student learning outcomes. To cite this article Salsabile, N.H. (2024). Technology integrated learning optimization in calculus topic in the new normal era.

People often feel anxious, frustrated and have negative attitudes towards mathematics because mathematics is often considered a difficult subject because the characteristics of mathematics are abstract, logical, systematic and full of confusing symbols and formulas. There is a need to address mathematic anxiety either through therapy, modification of learning methods, and so on to. Several research and publications related to mathematic anxiety has been done. However, until now, no definite solution has been found to overcome mathematic anxiety Therefore, this study was made to find out what is the current trend on research and publications related to mathematic anxiety in the last ten years. Data for this study is gathered from Scopus index. Analysis for this study was carried out using the bibliometric analysis method. Results of this study shows that Indonesia is the country with the highest number of publications related to mathematic anxiety. We also found that mathematic anxiety keyword has direct link to mathematics learning. Also, there are some topics that are less explored, for example the topic of therapy and the role of mathematics teachers which could be the focus of future research.