The Future of Visual Aids in Mathematics

1947 ◽  
Vol 40 (4) ◽  
pp. 180-181
Author(s):  
Donovan A. Johnson ◽  
James F. Nickerson

A period of rapid expansion of teaching materials such as motion picture films, film strips, three dimensional pictures, mathematical instruments and models, both of an instructional and an enrichment nature, lies immediately before us. Are we going to give individual and collective aid in directing this expansion in the most desirable and efficient direction? The need for this direction is very evident to all who have seen some of the teaching aids that are now available in the field of mathematics education.

2020 ◽  
Vol 4 (2) ◽  
pp. 230
Author(s):  
Sylvia Rabbani ◽  
Agni Muftianti

The main problem in this study is the lack of student communication skills and the lack of RME-based teaching materials that use used goods as a learning medium. The long-term objective of the research to be carried out is to support quality improvement and development of basic and regional education policies at the local and national levels through improving the quality of Indonesia's young generation of hope. The purpose of this study was to obtain an overview of the results of the implementation of teaching materials "mathematics learning in elementary schools". The focus of this research problem is: 1) learning steps using teaching materials and 2). Barriers are felt when learning using these teaching materials. And 3). The implementation of teaching materials uses a realistic mathematics education approach in the communication skills of PGSD students with the help of teaching aids made from used materials. The method used is descriptive qualitative, this study describes the application of elementary mathematics learning teaching materials in mathematics communication of students at the PGSD Siliwangi Teacher Training College and the obstacles in implementing teaching materials. The results of this study were the steps for implementing elementary mathematics teaching materials in mathematics communication for PGSD students..


2011 ◽  
Vol 6 (1) ◽  
Author(s):  
Hikmawati Hikmawati ◽  
Syahrul Azmi

Abstrak : Salah satu tujuan pembelajaran sains dan matematika di sekolah menengah pertama adalah untuk meningkatkan pengetahuan, konsep, dan keterampilan sains dan matematika siswa sebagai dasar untuk melanjutkanpendidikan ke jenjang selanjutnya. Keberadaan media dalam pembelajaran sangat diperlukan mengingat sains dan matematika memiliki konsep-konsep abstrak yang seringkali menjadi alasan sulitnya mempelajari materi kedua mata pelajaran tersebut. Media tiga dimensi dalam sains maupun alat peraga dalam matematika merupakan model peraga yang dapat dijadikan media dalam pembelajaran. Media tiga dimensi dapat berupa gambar yang setidaknya memiliki tiga sisi (depan, belakang dan samping) sehingga sebuah gambar tiga dimensi dapat dilihat dari berbagai arah. Peranan alat peraga dalam matematika adalah meletakkan ide-ide dasar konsep sehingga dengan bantuan alat peraga yang sesuai, siswa dapat memahami ide-ide dasar yang melandasi sebuah konsep, mengetahui cara membuktikan suatu rumus atau teorema, dan dapat menarik suatu kesimpulan dari hasil pengamatannya. Dengan demikian, model peraga dapat digunakan sebagai alat peraga untuk menerangkan konsep materi pelajaran sehingga siswa menjadi lebih tertarik, berminat dan memiliki motivasi belajar yang pada akhirnya akan meningkatkan prestasi belajar siswa.Kata-kata kunci : model peraga, media pembelajaran.Abstract : One goal of learning science and mathematics in secondary schools is to improve the knowledge, concepts, and skills of science and mathematics students as a basis for continuing their education to the next. The presence of media in learning is necessary considering the science and mathematics have the abstract concepts that are often the reason for the difficulty of studying the material both these subjects. Three-dimensional media in science andmathematics teaching aids in a visual model that can be used as media of learning. Media can be either three-dimensional image that has at least three sides (front, rear and side) so that a three-dimensional images can be viewed from various directions. The role of teaching aids in mathematics is to put the basic ideas of the concept that with the aid of appropriate props, students can grasp the basic ideas underlying the concept, knowing how to prove a formula or theorem, and can draw a conclusion from the results of his observations. Thus, the model can be used as a visual prop to explain the concept of subject matter so that students become more interested, interested and motivated to learn, which in turn will improve student achievement.Key words : models of visual aids, learning media.


Needs Analysis in the context of language-learning-teaching is an important process to design a certain course and syllabus. It helps course designers to set objectives, choose content, method of instruction, appropriate teaching aids, and classroom activities for different courses. This paper reports the perceptions of the researchers on the English language learning needs of the English undergraduate students of Shaheed Benazir Bhutto University Sheringal, Pakistan. The data is based on the researchers’ personal experience and first-hand observation of the population as the researchers have been teaching in the target context for about a decade. Furthermore, the researchers have always been in discussion with their students and colleagues about the target students’ English learning needs, preferred learning styles, motivation in learning English, interest, strengths/weaknesses, and attitude toward English learning in the target setting. Learners’ assignments, exam answer sheets, and presentations have also been used is a source of data collection. A needs analysis model proposed by Hutchinson and Waters (1987) has been applied in order to analyze the data. The results show that the students lack well grammatical sentences, have poor spellings, capitalization problems, limited vocabulary, unaware of collocations, poor/slow reading comprehension, and lack of effective presentation skills. Furthermore, most of the students have a lack of involvement in classroom activities and feel shy about speaking the English language. It was reported that the provision of authentic material, interesting activities, suitable audio-visual aids, relevant texts, language labs, and other logistic arrangements can better help them in learning the English language. The findings demonstrate that the students wished to have a learner-centered-course that helps them excel in their academic life and learning the English language.


2003 ◽  
Vol 30 (2) ◽  
pp. 299-316 ◽  
Author(s):  
Hans-JüRgen Lechtreck

Two early nineteenth century texts treating the production and use of wax models of fruit reveal the history of these objects in the context of courtly decoration. Both sources emphasise the models' decorative qualities and their suitability for display, properties which were not simply by-products of the realism that the use of wax allowed. Thus, such models were not regarded merely as visual aids for educational purposes. The artists who created them sought to entice collectors of art and natural history objects, as well as teachers and scientists. Wax models of fruits are known to have been collected and displayed as early as the seventeenth century, although only one such collection is extant. Before the early nineteenth century models of fruits made from wax or other materials (glass, marble, faience) were considered worthy of display because contemporaries attached great importance to mastery of the cultivation and grafting of fruit trees. This skill could only be demonstrated by actually showing the fruits themselves. Therefore, wax models made before the early nineteenth century may also be regarded as attempts to preserve natural products beyond the point of decay.


Author(s):  
M. A. Abd Halim ◽  
N. A. R. Nik Mohd ◽  
M. N. Mohd Nasir ◽  
M. N. Dahalan

Induction system or also known as the breathing system is a sub-component of the internal combustion system that supplies clean air for the combustion process. A good design of the induction system would be able to supply the air with adequate pressure, temperature and density for the combustion process to optimizing the engine performance. The induction system has an internal flow problem with a geometry that has rapid expansion or diverging and converging sections that may lead to sudden acceleration and deceleration of flow, flow separation and cause excessive turbulent fluctuation in the system. The aerodynamic performance of these induction systems influences the pressure drop effect and thus the engine performance. Therefore, in this work, the aerodynamics of motorcycle induction systems is to be investigated for a range of Cubic Feet per Minute (CFM). A three-dimensional simulation of the flow inside a generic 4-stroke motorcycle airbox were done using Reynolds-Averaged Navier Stokes (RANS) Computational Fluid Dynamics (CFD) solver in ANSYS Fluent version 11. The simulation results are validated by an experimental study performed using a flow bench. The study shows that the difference of the validation is 1.54% in average at the total pressure outlet. A potential improvement to the system have been observed and can be done to suit motorsports applications.


2006 ◽  
Vol 970 ◽  
Author(s):  
Manabu Bonkohara ◽  
Makoto Motoyoshi ◽  
Kazutoshi Kamibayashi ◽  
Mitsumasa Koyanagi

ABSTRACTRecently the development of three dimensional LSI (3D-LSI) has been accelerated and its stage has changed from the research level or limited production level to the investigation level with a view to mass production. This paper describes the current and the future 3D-LSI technologies which we have considered and imagined. The current technology is taken our Chip Size Package (CSP) for sensor device, for instance. In the future technology, there are the five key technologies are described. And considering con and pro of the current 3D LSI stacked approach, such as CoC (Chip on Chip), CoW (Chip on Wafer) and WoW (Wafer on Wafer), We confirmed that CoW combined with Super-Smart-Stack (SSS™) technology will shorten the process time per chip at the same level as WoW approach and is effective to minimize process cost.


2021 ◽  
Vol 11 (3) ◽  
pp. 1047
Author(s):  
Jungirl Seok ◽  
Sungmin Yoon ◽  
Chang Hwan Ryu ◽  
Junsun Ryu ◽  
Seok-ki Kim ◽  
...  

Although three-dimensional (3D)-printed anatomic models are not new to medicine, the high costs and lengthy production times entailed have limited their application. Our goal was developing a new and less costly 3D modeling method to depict organ-tumor relations at faster printing speeds. We have devised a method of 3D modeling using tomographic images. Coordinates are extracted at a specified interval, connecting them to create mesh-work replicas. Adjacent constructs are depicted by density variations, showing anatomic targets (i.e., tumors) in contrasting colors. An array of organ solid-tumor models was printed via a Fused Deposition Modeling 3D printer at significantly less cost ($0.05/cm3) and time expenditure (1.73 min/cm3; both, p < 0.001). Printed models helped promote visual appreciation of organ-tumor anatomy and adjacent tissues. Our mesh-work 3D thyroidal prototype reproduced glandular size/contour and tumor location, readily approximating the surgical specimen. This newly devised mesh-type 3D printing method may facilitate anatomic modeling for personalized care and improve patient awareness during informed surgical consent.


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