scholarly journals Challenges in addressing student difficulties with time-development of two-state quantum systems using a multiple-choice question sequence in virtual and in-person classes

2022 ◽  
Author(s):  
Peter Hu ◽  
Yangqiuting Li ◽  
Chandralekha Singh
Keyword(s):  
Quantum Mechanics ◽  
Formative Assessment ◽  
Quantum Systems ◽  
Student Understanding ◽  
Time Development ◽  
Multiple Choice Question ◽  
Instructional Tools ◽  
Traditional Lecture ◽  
Student Difficulties ◽  
Based Instruction

Abstract Research-validated clicker questions as instructional tools for formative assessment are relatively easy to implement and can provide effective scaffolding when developed and implemented in a sequence. We present findings from the implementation of a research-validated Clicker Question Sequence (CQS) on student understanding of the time-development of two-state quantum systems. This study was conducted in an advanced undergraduate quantum mechanics course for two consecutive years in virtual and in-person classes. The effectiveness of the CQS discussed here in both modes of instruction was determined by evaluating students’ performance after traditional lecture-based instruction and comparing it to their performance after engaging with the CQS.

scholarly journals A measurement of quantum fears

2016 ◽  
pp. 66-76
Author(s):  
JR Chapman ◽  
SO Hunt ◽  
NR Walet
Keyword(s):  
Quantum Mechanics ◽  
Time Dependence ◽  
Student Understanding ◽  
Time Dependent ◽  
Quantum Mechanical ◽  
Threshold Concepts ◽  
Survey Analysis ◽  
Student Difficulties ◽  
Self Evaluation

There are anecdotal indications that students avoid questions involving time-dependent exam problems in quantum mechanics. To obtain real evidence, a diagnostic questionnaire has been created and administered to third-year students. It measures students' understanding of quantum mechanics in general, with an emphasis on misconceptions and threshold concepts that may block a deeper under-standing of quantum mechanics, especially of time-dependent aspects. The questionnaire consists of two parts, a self-evaluation section followed by a conceptual survey. Analysis of the results of this questionnaire does indeed reveal areas of weakness in student understanding of time-dependence as well as of other fundamental quantum mechanical concepts. The questionnaire has been revised in light of the analysis with the aim of improving the understanding of student difficulties as well as the reliability of the questionnaire itself.

scholarly journals Wigner's Problem and Alternative Commutation Relations for Quantum Mechanics

1997 ◽  
Vol 11 (10) ◽  
pp. 1281-1296 ◽  
Author(s):  
V. I. Man'ko ◽  
G. Marmo ◽  
F. Zaccaria ◽  
E. C. G. Sudarshan
Keyword(s):  
Quantum Mechanics ◽  
Vector Field ◽  
Equations Of Motion ◽  
Quantum Systems ◽  
Heisenberg Picture ◽  
Commutation Relations

It is shown that for quantum systems the vector field associated with the equations of motion may admit alternative Hamiltonian descriptions, both in the Schrödinger and Heisenberg picture. We illustrate these ambiguities in terms of simple examples.

scholarly journals Academic-related perceptions, beliefs, and strategies of undergraduate agricultural students

2020 ◽  
Vol 1 (1) ◽  
pp. 75-85
Author(s):  
Samantha Jordan ◽  
Christopher Stripling ◽  
Christopher Boyer ◽  
Carrie Stephens ◽  
Nathan Conner
Keyword(s):  
Teaching And Learning ◽  
Future Research ◽  
Academic Efficacy ◽  
College Of Agriculture ◽  
Traditional Lecture ◽  
Future Success ◽  
Cognitive Levels ◽  
Colleges Of Agriculture ◽  
Based Instruction ◽  
The University

Students’ academic-related perceptions, beliefs, and strategies are fundamental elements that influence teaching and learning within colleges of agriculture. This study investigated students’ academic efficacy, academic self-handicapping, and skepticism about the relevance of school for future success at the University of Tennessee’s Herbert College of Agriculture. The students were academically efficacious, rarely self-handicapped, and did not doubt the relevance of their degree. In addition, a low negative association was found between academic efficacy and self-handicapping, a negligible relationship was found between academic efficacy and skepticism about the relevance of school for future success, and a moderate relationship was found between academic self-handicapping and skepticism about the relevance of school for future success. Therefore, instructors are encouraged to move past traditional lecture-based instruction and challenge their students at higher cognitive levels, which will allow students to realistically explore the complexities of agriculture. Furthermore, academic self-handicapping may be an indicator of lower academic efficacy and/or skepticism about the relevance of a student’s degree. Future research should further explore these relationships.  

scholarly journals Using quantum computing to create efficient algorithms

2021 ◽  
Vol 2056 (1) ◽  
pp. 012059
Author(s):  
I N Balaba ◽  
G S Deryabina ◽  
I A Pinchuk ◽  
I V Sergeev ◽  
S B Zabelina
Keyword(s):  
Quantum Mechanics ◽  
Quantum Computing ◽  
Computational Model ◽  
Exponential Growth ◽  
Quantum Algorithms ◽  
Quantum Systems ◽  
Efficient Algorithms ◽  
Historical Overview ◽  
Computing Model ◽  
Computational Strategy

Abstract The article presents a historical overview of the development of the mathematical idea of a quantum computing model - a new computational strategy based on the postulates of quantum mechanics and having advantages over the traditional computational model based on the Turing machine; clarified the features of the operation of multi-qubit quantum systems, which ensure the creation of efficient algorithms; the principles of quantum computing are outlined and a number of efficient quantum algorithms are described that allow solving the problem of exponential growth of the complexity of certain problems.

Using Games to Enhance Student Understanding of Professional and Ethical Responsibilities

2004 ◽  
Vol 19 (1) ◽  
pp. 85-99 ◽  
Author(s):  
M. Elizabeth Haywood ◽  
Dorothy A. McMullen ◽  
Donald E. Wygal
Keyword(s):  
Learning Process ◽  
Public Trust ◽  
Student Understanding ◽  
Student Feedback ◽  
Student Interest ◽  
Accounting Profession ◽  
Traditional Lecture ◽  
Corporate Scandals ◽  
Alternative Approach ◽  
Ethical Responsibilities

Given recent corporate scandals, the credibility of the accounting profession has been called into question. In order to restore public trust, accounting educators need to devise ways to convey the importance of ethics in our profession to our students. An alternative approach to using a traditional lecture to teach ethics is to use games. The purpose of this paper is to introduce a game strategy to teach ethics and professionalism to students. Using games makes learning more fun and also helps to maintain student interest and involvement in the learning process. Student feedback has been positive and encouraging on the use of this format to teach ethics and professional responsibilities.

Teaching Social Skills

2011 ◽  
pp. 1689-1713
Author(s):  
Graham Bodie ◽  
Margaret Fitch-Hauser ◽  
William Powers
Keyword(s):  
Online Learning ◽  
Social Skills ◽  
Blended Learning ◽  
Learning System ◽  
Future Research ◽  
Abstract Concepts ◽  
Traditional Lecture ◽  
Strict Adherence ◽  
Based Instruction ◽  
Practical Implications

The ubiquity of instructional technology necessitates a more critical look at the theories that drive adoption and the practical implications of its usage. Blended learning has been offered as one compromise to fully online learning or strict adherence to traditional lecture-based instruction that seems outdated. A particular approach to blended learning is examined in the present chapter through the use of an online learning system. Concept Keys was developed to assist instructors of social skills in breaking down these abstract concepts into manageable units of information appropriate for daily delivery via email. This program is shown to be easily integrated into existing curriculum through two studies. A concluding section attempts to tie these studies together and suggests potential limitations and avenues for future research.

scholarly journals INDETERMINATEZZA METAFISICA E MECCANICA QUANTISTICA

2019 ◽  
Author(s):  
Claudio Calosi
Keyword(s):  
Quantum Mechanics ◽  
Quantum Systems ◽  
Metaphysical Indeterminacy ◽  
Quantum Indeterminacy

The paper argues that quantum mechanics provide examples of genuine metaphysical indeterminacy that cannot be accounted for in purely modal terms. The best account of quantum indeterminacy has it that quantum systems have determinable properties without thereby having a unique determinate of that determinable.

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