scholarly journals Using Worked Examples to Improve Student Understanding of Atmospheric Dynamics

2019 ◽  
Vol 100 (9) ◽  
pp. 1653-1664
Author(s):  
Casey E. Davenport

AbstractAtmospheric dynamics can represent a significant hurdle for students; the need to successfully apply concepts from calculus and physics, as well as the sometimes counterintuitive nature of fluid flow, combine to produce frustration and suboptimal learning. Additionally, there is often an emphasis on equation derivations and theory, rather than real-world applications. A new approach for teaching atmospheric dynamics, known as worked examples, is discussed herein. This pedagogy resolves identified challenges in a few ways: 1) reducing the cognitive load of students by explicitly demonstrating (via an expert-constructed guide) how mathematics and physics are applied to the atmosphere; 2) utilizing (as much as appropriate) real-world scenarios to demonstrate how equations explain what we observe; and 3) providing opportunities for students to critically examine the scenario, the relevant math and physics, and the underlying theory via a series of self-explanation prompts throughout the example. This study provides detailed information on the creation and implementation of worked examples in the two-semester atmospheric dynamics course sequence at the University of North Carolina at Charlotte. Comparisons in performance between students who took the course as a traditional lecture and derivation-based course and those who were subject to the worked examples pedagogy identify significant improvements with the new approach, especially for first-semester dynamics. Students also express deep satisfaction with the hands-on, application-based pedagogy.

2020 ◽  
Vol 10 (12) ◽  
pp. 353
Author(s):  
Shaya Wolf ◽  
Andrea Carneal Burrows ◽  
Mike Borowczak ◽  
Mason Johnson ◽  
Rafer Cooley ◽  
...  

Research on innovative, integrated outreach programs guided three separate week-long outreach camps held across two summers (2018 and 2019). These camps introduced computer science through real-world applications and hands-on activities, each dealing with cybersecurity principles. The camps utilized low-cost hardware and free software to provide a total of 84 students (aged 10 to 18 years) a unique learning experience. Based on feedback from the 2018 camp, a new pre/post survey was developed to assess changes in participant knowledge and interest. Student participants in the 2019 iteration showed drastic changes in their cybersecurity content recall (33% pre vs. 96% post), cybersecurity concept identification within real-world scenarios, and exhibited an increased ability to recognize potential cybersecurity threats in their every-day lives (22% pre vs. 69% post). Finally, students’ self-reported interest-level before and after the camp show a positive increase across all student participants, with the number of students who where highly interested in cybersecurity more than doubling from 31% pre-camp to 65% post-camp. Implications for educators are large as these activities and experiences can be interwoven into traditional schooling as well as less formal camps as pure computer science or through integrated STEM.


2017 ◽  
Author(s):  
Santi J. Vives

Hash-based signatures are typically stateful: they need to keep a state with the number of past signatures to know which values have been already used and cannot be reused. If the memory storing the state fails, the security would degrade. Some implementations solve the problem by using a number of secret values so large that the probability of picking the same at random is negligible, but this solution can make the signatures impractical for some real world applications. This paper proposes a new approach to hash-based signatures: we show that it is possible to derive their state entirely from time, without the need to keep a state with the number of past signatures,


2013 ◽  
Vol 14 (2) ◽  
pp. 92-110 ◽  
Author(s):  
Sarah Passoneau ◽  
Michele Christian

What can researchers do when they want to transform a traditional lecture into a collaborative, hands-on learning experience? How can participants learn and become empowered to construct and maintain historical records that reflect their experiences? An archivist can lecture students about basic archival practices and the students can learn a few skills, but hands-on activities for record creation and maintenance that facilitate participants’ learning will create collaborators with basic, but important, archival skills.At Iowa State University (ISU), the University Archivist and the Assessment Librarian partnered to create an educational outreach program with Greek (fraternity and sorority) students and alumni.


2017 ◽  
Vol 59 (9) ◽  
pp. 990-1006 ◽  
Author(s):  
Roger Pizarro Milian ◽  
Marc Gurrisi

Purpose The purpose of this paper is to empirically examine how entrepreneurship education is being marketed to students within the Canadian university sector. Design/methodology/approach A content analysis of the webpages representing 66 entrepreneurship education programs in Canada is performed. Findings Entrepreneurship education is found to be framed as providing students with a collaborative learning experience, useful hands-on skills with real world applications and an entrepreneurial mindset. Research limitations/implications This study looks at only one type of promotional material, and thus, further research is needed to triangulate its findings. Originality/value This is the first study that empirically examines the marketing of entrepreneurship education in Canada.


2010 ◽  
Vol 10 (4-6) ◽  
pp. 417-432 ◽  
Author(s):  
VíTOR SANTOS COSTA ◽  
INÊS DUTRA ◽  
RICARDO ROCHA

AbstractOne of the main advantages of Logic Programming (LP) is that it provides an excellent framework for the parallel execution of programs. In this work we investigate novel techniques to efficiently exploit parallelism from real-world applications in low cost multi-core architectures. To achieve these goals, we revive and redesign the YapOr system to exploit or-parallelism based on a multi-threaded implementation. Our new approach takes full advantage of the state-of-the-art fast and optimized YAP Prolog engine and shares the underlying execution environment, scheduler and most of the data structures used to support YapOr's model. Initial experiments with our new approach consistently achieve almost linear speedups for most of the applications, proving itself as a good alternative for exploiting implicit parallelism in the currently available low cost multi-core architectures.


2017 ◽  
Vol 76 (7) ◽  
pp. 1640-1651 ◽  
Author(s):  
Guangyuan Kan ◽  
Xiaoyan He ◽  
Liuqian Ding ◽  
Jiren Li ◽  
Ke Liang ◽  
...  

The shuffled complex evolution optimization developed at the University of Arizona (SCE-UA) has been successfully applied in various kinds of scientific and engineering optimization applications, such as hydrological model parameter calibration, for many years. The algorithm possesses good global optimality, convergence stability and robustness. However, benchmark and real-world applications reveal the poor computational efficiency of the SCE-UA. This research aims at the parallelization and acceleration of the SCE-UA method based on powerful heterogeneous computing technology. The parallel SCE-UA is implemented on Intel Xeon multi-core CPU (by using OpenMP and OpenCL) and NVIDIA Tesla many-core GPU (by using OpenCL, CUDA, and OpenACC). The serial and parallel SCE-UA were tested based on the Griewank benchmark function. Comparison results indicate the parallel SCE-UA significantly improves computational efficiency compared to the original serial version. The OpenCL implementation obtains the best overall acceleration results however, with the most complex source code. The parallel SCE-UA has bright prospects to be applied in real-world applications.


2019 ◽  
Vol 3 (27) ◽  
pp. 149
Author(s):  
Víctor Manuel Barros ◽  
Melba Bettsy Martínez Calero

Introduction This work constitutes an application of the games as a tool to encourage the learning of Mathematics of first semester students of the Teacher Training Course in Mathematics and Physics of the University of Guayaquil. The intent was Objective to integrate interdisciplinarity into a single activity. Materials and methods playful elements and cooperative work were used to develop the classroom activities. The students managed to conceptualize important elements of Geometry, Probabilities, Counting and Tics. Discussion enhance the reflection of students on the manipulative activity that takes place in classes, because this reflection is the basis for the construction of their own mathematical ideas. Conclusions Applying the games allowed greater participatory action and understanding of abstract concepts.


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