scholarly journals Exploring Secondary Students’ Alternative Conceptions about Engineering Design Technology

2019 ◽  
Vol 9 (1) ◽  
pp. 45 ◽  
Author(s):  
Anila Asghar ◽  
Ying-Syuan Huang ◽  
Kenneth Elliott ◽  
Yannick Skelling
Keyword(s):  
Engineering Design ◽  
Secondary Students ◽  
Science And Technology ◽  
Alternative Conceptions ◽  
Scientific Models ◽  
Technological Systems ◽  
Technology Curriculum ◽  
Design Technology ◽  
Scientific Explanations ◽  
Mechanistic Reasoning

This paper presents the assessment items that were developed by science and technology teachers in Québec to explore their students’ alternative ideas about engineering design technology and technological systems. These assessment items were administered to Secondary Cycle One students in Francophone and Anglophone schools in Québec to elicit their ideas about the foundational technology concepts included in the science and technology curriculum. Students’ responses are presented to share their alternative and scientific explanations. In addition, various approaches to facilitate a deeper understanding of scientific models and mechanistic reasoning in students are also discussed.

scholarly journals Administrasi Kurikulum

2019 ◽  
Author(s):  
Dini Eka Puteri ◽  
Hade Afriansyah ◽  
Hadiyanto Hadiyanto
Keyword(s):  
Data Collection ◽  
Science And Technology ◽  
Educational Institution ◽  
The Internet ◽  
Learning Material ◽  
Curriculum Management ◽  
Technology Curriculum ◽  
Community Based ◽  
Collection Method ◽  
Data Collection Method

Writing this article aims to find out the curriculum administration process. The data collection method used in writing this article is the collection of literature on the internet. Administration is this work is related to the activities of receiving, recording, gathering, processing, duplicating, sending, storing, and so on. While the curriculum is a system that has components that are closely interrelated and mutually supportive. So, curriculum administration is a related work to collect and process goals and curriculum components consisting of goals, learning material, methods, and evaluations. A good curriculum is a curriculum that follows development of community based science and technology. Curriculum management determines success and failure in education. Therefore, the responsibility of educational institution and all education stakeholders must have the same vision planning, organizing, monitoring, and evaluating of the curriculum.

Insertion points of the essential nanoscale science and technology (NST) concepts in the Israeli middle school science and technology curriculum

2018 ◽  
Vol 7 (5) ◽  
pp. 373-391 ◽  
Author(s):  
Sohair Sakhnini ◽  
Ron Blonder
Keyword(s):  
Middle School ◽  
Science Curriculum ◽  
Science And Technology ◽  
Modern Science ◽  
School Science ◽  
Middle School Science ◽  
Technology Curriculum ◽  
School Science Curriculum ◽  
Identification Stage ◽  
Validation Stage

Abstract If we wish to integrate modern science such as nanotechnology into the school science curriculum, we need to find the natural insertion point of modern science with the science, technology, engineering and math curriculum. However, integrating nanoscale science and technology (NST) essential concepts into the middle school science curriculum is challenging. The current study was designed to identify the insertion points of the eight NST essential concepts in the middle school science and technology curriculum. Middle school science and technology teachers underwent a course that included all eight NST essential concepts, aiming to help them understand the NST essential concepts in depth. Then, they were asked to identify a natural insertion point in the existing science and technology curriculum for each of the NST essential concepts. To support research validation, two different groups of teachers participated in two sequential stages of the study (the identification stage and the validation stage). The teachers in the identification stage identified the insertion points of all eight NST essential concepts in the subjects of the science and technology curriculum, which reflects the relevance of the NST concepts from the teachers’ perspective in terms of pedagogical level. The majority of the identified insertion points were validated in the second stage. Forty-two insertion points of the NST essential concepts were suggested to be integrated in middle school science and technology curriculum. All the insertion points that were suggested in the identification stage were confirmed in the validation stage. Another 11 new insertion points were added at the validation stage. The connections to the different scientific subjects in the curriculum are as follows: 19 insertion points were suggested by the teachers in the chemistry part of the chemistry curriculum, 12 in the life science, four in the physics-energy, and seven in technology-systems and products. The results present the opportunity to expose middle school students to contemporary science using the existing science and technology curriculum. The study serves as an example of integrating NST concepts into a middle school science curriculum in Israel, but it can be applied in other science curricula worldwide, taking into consideration the topics included in each curriculum.

scholarly journals An exploratory study of informed engineering design behaviors associated with scientific explanations

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Şenay Purzer ◽  
Molly Hathaway Goldstein ◽  
Robin S Adams ◽  
Charles Xie ◽  
Saeid Nourian
Keyword(s):  
Engineering Design ◽  
Exploratory Study ◽  
Scientific Explanations

On the prevalence of alternative conceptions on acid–base chemistry among secondary students: insights from cognitive and confidence measures

2016 ◽  
Vol 17 (2) ◽  
pp. 263-282 ◽  
Author(s):  
Kai Yee Hoe ◽  
R. Subramaniam
Keyword(s):  
Secondary Students ◽  
Educational Psychology ◽  
Alternative Conceptions ◽  
Acid Base ◽  
Education Literature ◽  
Acids And Bases ◽  
Psychology Literature ◽  
Development And Validation ◽  
Ph Neutralization ◽  
Do So

This study presents an analysis of alternative conceptions (ACs) on acid–base chemistry harbored by grade 9 students in Singapore. The ACs were obtained by the development and validation of a 4-tier diagnostic instrument. It is among the very few studies in the science education literature that have focused on examining results based also on measures used in the educational psychology literature. The results indicate that the students harbor a range of ACs of varying strengths in relation to the properties of acids and bases, strengths of acids and bases, pH, neutralization, indicators, and sub-microscopic views of acids and bases. The 25-item instrument uncovered 30 ACs. A novel insight from this study is that when students are presented with a test item with all incorrect answer and reason responses but with a blank space for them to fill up their own answer and reason if they disagree with any of these responses, hardly any chose to do so. ACs were also identified from this question. Overall, the results reiterate the utility of the 4-tier format for identifying ACs and getting some indication of their strengths.

Design Method about Spherical Diaphragm Sealing of Tube Channel in High Pressure Heat Exchanger

2012 ◽  
Vol 538-541 ◽  
pp. 2164-2168
Author(s):  
Sun Yi Chen
Keyword(s):  
High Pressure ◽  
Heat Exchanger ◽  
Engineering Design ◽  
Design Method ◽  
Function Analysis ◽  
Arch Height ◽  
Design Technology ◽  
Engineering Structure ◽  
And Function ◽  
Tube Channel

Spherical diaphragm seal dish of tube channel open end in high pressure heat exchanger is a new engineering structure that used in petrochemical hydrogenation unit, and its design technology is not reported now. It is inconvenience to analyze each case by limited element method. Design method of formulas is proposed to calculate both radial offset displacement and its thickness of spherical diaphragm based on shell elasticity mechanics. Relation formulas are deduced about arch height, open end radius, offset displacement by geometry. Two presuppositions are deduced for spherical diaphragm successful to run according to technology theory and function analysis of seal dish structure, which can be used for engineering design.

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