Creating an Inexpensive 3D Printer to Engage Students in Material Science Education

2011 ◽  
Vol 1320 ◽  
Author(s):  
Joseph J. Muskin ◽  
Kathleen M. Davis

ABSTRACTMaterial science can be used to enrich secondary school curriculum and illuminate for students the connection between science and technology. Based on materials research being conducted at the University of Illinois, we have developed an interdisciplinary activity that integrates engineering with chemistry and material science.Students investigate the behaviors of polymers by creating 3-dimensional (3-D) objects. Students can design objects that they “print” on the order of a cubic inch in about 20 minutes. The process students use to create these objects shows the application of engineering to material science in a novel and engaging way.A photoactive chemical is initiated by the UV and blue light emitted from a data projector. This causes the formation of free radicals, which interact with molecules of a monomer and cause a polymerization reaction. The visual result of this reaction is that a liquid solidifies where students shine light. With black-and-white images, a data projector can direct the light to form any shape. This process can be easily modified to create true 3-D objects by adding another layer of the liquid to the top of the object and then shining the light again. With about 20 dollars worth of supplies from a hardware store, a simple staging device can be created to greatly simplify the process to create a 3-D printer in the classroom. Fabrication of this device can be done by students because the projector controls the x and y array of pixels; the object only needs to move in the z direction, unlike traditional rapid prototyping machines which control movement in the x, y, and z directions.Results of integration into high school and college curriculum are discussed, and methods of integration and student perceptions of the activity are reported.

2021 ◽  
pp. 215-243
Author(s):  
Diana Pacheco-Montoya ◽  
Erin Murphy-Graham

AbstractThis chapter presents findings from a design-based research project between the University of California, Berkeley and a Honduran non-governmental organization, Bayan Association called Holistic Education for Youth (HEY!). We explain why critical thinking is a crucial life skill to prevent child marriage in rural areas of Honduras and illustrate how critical thinking (specifically around gender inequality and marriage) was incorporated into a secondary school curriculum. We describe the pedagogies used to develop this curriculum and offer insights about its implementation. Finally, using classrooms observation and interview data, we discuss how students developed critical thinking and decision-making skills related to the gender inequality in society that has perpetuated the practice of child marriage.


2019 ◽  
Vol 9 (1) ◽  
pp. 49-53
Author(s):  
Safaa El Bialy ◽  
Robin Weng ◽  
Alireza Jalali

Gross anatomy has been seen as one of the basic bodies of knowledge that must be mastered as part of medical training. Likewise, neuroanatomy has been seen as foundational to clinical neurosciences. However, Neuroanatomy is different from gross anatomy and this is due to the complexity of the central nervous system, moreover, some of its structures cannot be dissected or demonstrated in anatomy cadaveric lab. The use of anatomical models in medical curricula has been reported as an effective way in teaching and learning anatomy. They have been used to replace cadaveric material when the latter is difficult to acquire, or when the anatomical structures cannot be dissected like the brain ventricles for instance, moreover they have the privilege of visualizing the structures in a 3 dimensional modality. The goal of this study was to create a 3 D printed neuroanatomy model in order to complement the University of Ottawa anatomy models’ library, and help medical students visualize the pathway of different nervous tracts on a 3 D simulation model.To assist with this, 2D images of slices of the cerebrum, brainstem, cervical, thoracic, and lumbar spinal cord were downloaded online to be imported to Adobe Photoshop CC 2015. The images were manually converted to black and white, and separated into different layers to export each components separately into Tinker CAD (online software). The different components were then assembled on Tinker CAD to create 3D printer compatible files. The files were printed using white ABS on a Replicator 2X MakerBot printer at the library of University of Ottawa.    


Author(s):  
Dwi Poedjiastutie ◽  
Zetty Aqmi Amrin ◽  
Yongki Setiawan

English communication in Indonesian schools poses a lot of challenges. These are especially related to the factors involved in education as secondary school curriculum. Indonesia high school curriculums are usually constructed using top-down approach. This approach is suspected to contribute students’ communication development at later stage in university level. Communication courses at tertiary level are expected to equip students with more advanced communication level than at secondary school so the gradual development of students’ communication level can be attained. Several researches have been conducted to disclose those issues. However, a little attention is given to reveal the expectations and challenges from both students and teachers respectively. Due to that, this study is intended to examine factors inhibit the development of communication competence of the university students. An interpretive research paradigm was employed in this study. Speaking teachers at English Department (ED) were selected using convenient sampling. Expectation and challenges of developing communication level at DS University (DSU) are revealed from both students and teachers. Both cohorts expect the English Department Chairman to take serious steps to face upcoming globalization in which improving communication competence of ED graduates are urgent.


2019 ◽  
Author(s):  
A.N. Novikov ◽  
M.S. Novikova

География это мировоззренческая наука. Сложившаяся за десятилетия структура курса обучения географии в российской средней школе знакома каждому из нас и состоит из четырёх этапов. В университете система обучения будущих учителей географии состоит из тех же самых этапов, однако, это не просто углублённое повторение школьной программы, это совершенно новый, более высокий уровень географического образования. Как на школьном, так и на университетском уровнях изменения происходят в масштабе тем и разделов отдельных этапов, но этапы остаются неизменными. Межэтапный уровень является предельным, его осознание не попадает в область рефлексии педагогов и методистов. Отсутствуют и научные труды по его анализу. В качестве метода исследования выступает диалектика, законы которой срабатывают в виде мировоззренческих формул. В школьном географическом образовании проблема формирования восприятия не проявляется чётко и поэтому не осознаётся. Проблемы начинают проявляться на межэтапном уровне. Мировоззренческая формула дихотомии перестала работать в виде противопоставления отраслевая география районная география, взаимодействие в этой бинарной оппозиции строилось по принципу отраслевой анализ региональный синтез. В разделах районной географии исчезли механизмы (энергопроизводственные циклы) и формы синтеза (природнотерриториальные и территориальнопроизводственные комплексы). Произошла утрата целесообразности изучения районной географии. Новых форм синтеза в постсоветское время на вооружение российской школьной и университетской географией принято не было. В университетском курсе, который был направлен на осознание диалектических знаний школьного курса и развитие их, невозможно провести рефлексию, так как основы географических знаний у абитуриентов бесформенные. Владение мировоззренческими формулами это вопрос отражения географической реальности. В переходе с уровня на уровень возрастает самостоятельность географического мышления и удаление от стереотипов, возрастает эвристический потенциал за счёт сочетания формул, которое даёт вариативность отражения географической реальности. Geography is a worldview science. The structure of the geography course in the Russian secondary school, which has developed over the decades, is familiar to each of us and consists of four stages. At the University, the system of teaching future teachers of geography consists of the same stages, however, it is not just an indepth repetition of the school curriculum, it is a completely new, higher level of geographical education. At both the school and University levels, changes occur in the scale of topics and sections of individual stages, but the stages remain the same. The interstage level is the limit, its awareness does not fall into the field of reflection of teachers and methodologists. There are no scientific papers on its analysis. The method of research is dialectics, the laws of which work in the form of worldview formulas. In school geographic education, the problem of perception formation is not clearly manifested and therefore is not realized. Problems begin to emerge at the interstage level. The worldview formula of dichotomy ceased to work in the form of the opposition sectoral geography regional geography, the interaction in this binary opposition was based on the principle of sectoral analysis regional synthesis. Mechanisms (energy production cycles) and forms of synthesis (naturalterritorial and territorialproduction complexes) have disappeared in the sections of the district geography. There was a loss of expediency of studying of regional geography. New forms of synthesis in the postSoviet period were not adopted by the Russian school and University geography. In the University course, which was aimed at understanding the dialectical knowledge of the school course and their development, it is impossible to reflect, as the basis of geographical knowledge of students formless. The possession of ideological formulas is the question of geographic reality. In the transition from level to level increases the independence of geographical thinking and the distance from stereotypes, heuristic potential increases due to the combination of formulas, which gives variability of reflection of geographical reality.


Author(s):  
Chanratana Chen

In December 2019, Michael Falser, of the University of Heidelberg, a specialist on heritage preservation and the art and architectural history of South and Southeast Asia, published his two-volume study, Angkor Wat: A transcultural history of heritages, which he had spent almost ten years researching. The volumes cover the history of research of the most famous monument in Cambodia, Angkor Wat, the world's largest religious monument, listed by UNESCO as a World Heritage Site in 1992. The two volumes include more than 1,400 black-and-white and colour illustrations, including historical photographs and the author's own photographs, architectural plans and samples of tourist brochures and media clips about Angkor Wat, which has been represented as a national and international icon for almost 150 years, since the 1860s.


2018 ◽  
Vol 8 (3) ◽  
pp. 102 ◽  
Author(s):  
Matt Elphick

Digital capabilities are recognized as key skills that students must possess to learn and work in our increasingly digital world and have been the subject of a growing focus over recent years. Similarly, smartphones and, to a lesser degree, tablets are now ubiquitous within the student body, and many academics are beginning to leverage these devices for the purposes of learning and teaching in higher education. To further explore the possibilities of mobile technology, the iPilot project was created to explore the effects that embedded iPad use had on undergraduate students’ creativity, ability to collaborate with their peers and their perception of their digital capabilities. Focusing on the digital capabilities aspect of the project, this paper explores the results gathered. While the results are mixed, when combined with data taken from the Joint Information Systems Committee (JISC) Digital Experience Tracker, it does appear that using iPads in the university classroom can have a positive impact on certain digital behaviors and students’ perceptions of their digital skills.


Author(s):  
Michele Scervini ◽  
Catherine Rae

A new Nickel based thermocouple for high temperature applications in gas turbines has been devised at the Department of Material Science and Metallurgy of the University of Cambridge. This paper describes the new features of the thermocouple, the drift tests on the first prototype and compares the behaviour of the new sensor with conventional mineral insulated metal sheathed Type K thermocouples: the new thermocouple has a significant improvement in terms of drift and temperature capabilities. Metallurgical analysis has been undertaken on selected sections of the thermocouples exposed at high temperatures which rationalises the reduced drift of the new sensor. A second prototype will be tested in follow-on research, from which further improvements in drift and temperature capabilities are expected.


2014 ◽  
Vol 978 ◽  
pp. 23-26
Author(s):  
Si Ru Qian

We take “5.12 Wenchuan earthquake” influence and one of the university in Mianyang urban area as the typical examples of the disaster preparedness community. We discuss how to plan the multiply disaster preparedness which in accordance to the geographical feature of hilly cities through the material properties of engineering materials research and study of the four-dimensional space disaster preparedness model.


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