scholarly journals Educational toolkit based on design methodologies to promote scientific knowledge transfer in secondary schools: A graphene-centered case study

2020 ◽  
Vol 10 (1) ◽  
pp. 17
Author(s):  
Blanca Guasch ◽  
Marta González ◽  
Sergi Cortiñas

Nanoscience and nanotechnology are two key areas in the development of new technologies. However, scientific advances in these fields are still far removed from the contents taught in schools. But what if basic concepts within these areas were introduced in secondary schools? We believe science is an essential facet of culture and the most recent scientific advances should be within everyone’s reach. With this in mind, we have developed and tested an educational toolkit to transfer complex scientific concepts in classrooms. The toolkit is based on design and creative thinking methodologies, and graphene is used as an example of a subject that is challenging to communicate within the area of nanoscience. This paper highlights the development of the toolkit and it being tested out in a secondary school by 93 students between the ages of 11 and 13. The testing was carried out through the creation of a workshop called “Graphene in the Classroom.” We determined five evaluation categories: Acquiring Knowledge, Satisfaction, Challenges, Teamwork, and Facilitator’s Role. The results show that integrating scientific content and design methodologies is a complex yet profitable strategy. The toolkit demonstrated to allow the translation of a complex language into friendlier, more approachable, and easier language. The classroom climate was positive and the presence of a facilitator enhanced motivation, empathy, scientific rigor, and adequate adaptation of contents.

2013 ◽  
Vol 16 (1) ◽  
pp. 59-67

<p>The Soil Science Institute of Thessaloniki produces new digitized Soil Maps that provide a useful electronic database for the spatial representation of the soil variation within a region, based on in situ soil sampling, laboratory analyses, GIS techniques and plant nutrition mathematical models, coupled with the local land cadastre. The novelty of these studies is that local agronomists have immediate access to a wide range of soil information by clicking on a field parcel shown in this digital interface and, therefore, can suggest an appropriate treatment (e.g. liming, manure incorporation, desalination, application of proper type and quantity of fertilizer) depending on the field conditions and cultivated crops. A specific case study is presented in the current work with regards to the construction of the digitized Soil Map of the regional unit of Kastoria. The potential of this map can easily be realized by the fact that the mapping of the physicochemical properties of the soils in this region provided delineation zones for differential fertilization management. An experiment was also conducted using remote sensing techniques for the enhancement of the fertilization advisory software database, which is a component of the digitized map, and the optimization of nitrogen management in agricultural areas.</p>


Author(s):  
Susanne Gannon ◽  
Jennifer Dove

AbstractIn secondary schools, English teachers are often made responsible for writing results in national testing. Yet there have been few studies that focussed on this key group, or on how pedagogical practices have been impacted in the teaching of writing in their classrooms. This study investigated practices of English teachers in four secondary schools across different states, systems and regions. It developed a novel method of case study at a distance that required no classroom presence or school visits for the researchers and allowed a multi-sited and geographically dispersed design. Teachers were invited to select classroom artefacts pertaining to the teaching of writing in their English classes, compile individualised e-portfolios and reflect on these items in writing and in digitally conducted interviews, as well as elaborating on their broader philosophies and feelings about the teaching of writing. Despite and sometimes because of NAPLAN, these teachers held strong views on explicit teaching of elements of writing, but approached these in different ways. The artefacts that they created animated their teaching practices, connected them to their students and their subject, suggested both the pressure of externally driven homogenising approaches to writing and the creative individualised responses of skilled teachers within their unique contexts. In addition to providing granular detail about pedagogical practices in the teaching of writing in the NAPLAN era, the contribution of this paper lies in its methodological adaptation of case study at a distance through teacher-curated artefact portfolios that enabled a deep dive into individual teachers’ practices.


Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4271
Author(s):  
Lucia Cattani ◽  
Paolo Cattani ◽  
Anna Magrini

Photovoltaic panel efficiency can be heavily affected by soiling, due to dust and other airborne particles, which can determine up to 50% of energy production loss. Generally, it is possible to reduce that impact by means of periodic cleaning, and one of the most efficient cleaning solutions is the use of demineralized water. As pauperization of traditional water sources is increasing, new technologies have been developed to obtain the needed water amount. Water extracted from the air using air to water generator (AWG) technology appears to be particularly suitable for panel cleaning, but its effective employment presents issues related to model selection, determining system size, and energy efficiency. To overcome such issues, the authors proposed a method to choose an AWG system for panel cleaning and to determine its size accordingly, based on a cleaning time optimization procedure and tailored to AWG peculiarities, with an aim to maximize energy production. In order to determine the energy loss due to soiling, a simplified semiempirical model (i.e., the DIrt method) was developed as well. The methodology, which also allows for energy saving due to an optimal cleaning frequency, was applied to a case study. The results show that the choice of the most suitable AWG model could prevent 83% of energy loss related to soling. These methods are the first example of a design tool for panel cleaning planning involving AWG technology.


Author(s):  
T. Mohammed-Brahim ◽  
J.M. Floch ◽  
O. de Sagazan ◽  
M. Harnois ◽  
C. Lebreton ◽  
...  

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