scholarly journals TRANSLATING PROBLEM STATEMENTS INTO ACTIONABLE SOLUTION PROCEDURE: DEVELOPING PROBLEM-SOLVING SKILLS IN CHEMICAL ENGINEERING SECOND-YEAR STUDENTS

Author(s):  
Louise Meunier ◽  
Nicolas Hudon

Junior-level chemical engineering students often struggle with solving problems in fundamental undergraduate courses. This deficiency is generally attributed, by instructors and students alike, to gaps in mathematical knowledge. However, the difficulty may instead be rooted in an inability to interpret the information from problem statements. In this contribution, a coordinated, multi-faceted instruction methodology is proposed, over a sequence of second-year chemical engineering fundamental courses, to foster the development of problem-solving strategies and to increase the confidence of students in their abilities to decipher problem data, to develop a proper mathematical framework, and to apply a first-principle approach to problem solving. Compared with traditional lectures alone, obstacles to problem solving may be overcome when students are offered additional learning streams in the form of interactive workshops and video-recorded examples. This results in raised confidence levels toward translating problems into actionable solution procedure.

Author(s):  
Louise Meunier ◽  
Nicolas Hudon

At the undergraduate level, chemical engineering students must learn how to solve complex problems, but many students fail to apply effective problem-solving techniques taught in fundamental science courses. Because these techniques are not consistently presented and reinforced, instructors and students often interpret poor capabilities in problem solving to misunderstandings of fundamentals or to gaps in mathematical knowledge. In this contribution, a previously proposed concept map aimed at ascribing a common approach to problem solving is further explored in a sequence of two junior-level chemical engineering courses. The difficulties of implementing a common problem-solving approach are discussed, and a hierarchy of problem solving is proposed – based on a combination of learning theories – to structure a problem-solving methodology from junior to senior level as well as toward graduate studies and professional practice. Preliminary results indicate that students benefiting from this structured approach exhibit improved confidence in their problem-solving abilities.  The proposed concept map forms the basis of future stages of the project, including curriculum and teaching innovations.


2016 ◽  
Vol 17 (3) ◽  
pp. 489-508 ◽  
Author(s):  
Jesper Haglund ◽  
Staffan Andersson ◽  
Maja Elmgren

Entropy is a central concept in thermodynamics, but has been found to be challenging to students due to its abstract nature and the fact that it is not part of students' everyday language. Interviews with three pairs of engineering students (N= 6) were conducted and video recorded regarding their interpretation and use of the entropy concept, one year after a course on chemical thermodynamics. From a syntax perspective, students were asked to assess whether different sentences involving temperature, internal energy, and entropy make sense. With a focus on semantics, they were asked to rank a set of notions with regards to how closely they are related to entropy, how scientific they are, and how useful they are for explaining what entropy is. From a pragmatics point of view, students were asked to solve two qualitative problems, which involve entropy. The results show that these chemistry students regard internal energy, but not entropy, as a substance-like entity. The students' ranking of how closely related to entropy notions are and how useful they are for explaining entropy was found to be strongly negatively correlated to how scientific the notions were seen to be. For example, disorder was seen as highly unscientific, but very useful for explaining entropy. In the problem-solving tasks, Chemical Engineering students were comfortable relating entropy to enthalpy and Gibbs free energy, the three notions being seen to form a “trinity” in thermodynamics. However, the students had challenges grasping the unchanged entropy in reversible, adiabatic expansion of an ideal gas, in which they did not consider how entropy relates to the second law of thermodynamics. In final reflections on their learning processes, the students saw weak connections between their problem-solving skills and their conceptual understanding of entropy, although acknowledging that both aspects of learning are important.


Author(s):  
Godfred Amevor ◽  
Anass Bayaga ◽  
Michael J. Bosse

In science, technology, engineering and mathematics (STEM) for instance, interdisciplinary studies have noted positive correlation between spatial-visualization (SV skills) and mathematical problem solving. The majority of these studies sharing a link between SV skills and problem solving were contextualized in urban settings and only a few in rural settings. This investigation analyses how rural-based pre-service teachers apply their SV skills in problem-solving in a South African university, in the context of vector calculus. One hundred rural-based pre-service teachers in a second year vector calculus class at University of Zululand (UNIZULU) were randomly selected into control and experimental groups. MATLAB was used as a dynamic visual tool to analyse how research participants applied their SV skills. A mixed method approach was employed in data collection (quantitative and qualitative). Our findings revealed that the rural-based pre-service teachers’ SV skills correlate with their problem-solving skills in vector calculus.


Author(s):  
Pawan Tyagi ◽  
Christine Newman

Preparing high school students for engineering disciplines is crucial for sustainable scientific and technological developments in the USA. This paper discusses a pre-college program, which not only exposes students to various engineering disciplines but also enables them to consider engineering as the profession. The four-week long “Engineering Innovation (EI)” course is offered every year to high school students by the center of outreach, Johns Hopkins University. EI program is designed to develop problem-solving skills through extensive hands-on engineering experiments. A team consisting of an instructor, generally a PhD in Engineering, and a teaching fellow, generally a high school science teacher, closely work with students to pedagogically inculcate basics of core engineering disciplines such as civil, mechanical, electrical, materials, and chemical engineering. EI values independent problem-solving skills and simultaneously promote the team spirit among students. A number of crucial engineering aspects such as professional ethics, communications, technical writing, and understanding of common engineering principles are inculcated among high school students via well-designed individual and group activities. This paper discusses the model of EI program and its impact on students learning and their preparation for the engineering career.


2019 ◽  
Vol 1 (3) ◽  
pp. 8-11
Author(s):  
MURUGAN SUBRAMANIAM ◽  
Muhammad Khair Noordin

Current survey shows there are 1 out of 5 graduates are unemployed (Site, 2018). Lack of non technical skills among graduates be one of the main reason for unemployment.Data shows Problem Solving Skills is the second most important non technical skill sought by employers (To et al., 2019); The studies show that the problems cannot be solved by using the same kind of thinking approach applied at the moment it was created. Therefore, a systematic analytical skill is required to handle the engineering related problems happening at manufacturing environment or engineering workplace. The purpose of this paper is to analyze the existing literature about Problem Solving skills for graduate engineers through a systematic literature review. This paper analyses literature through electronic databases mainly from Scopus and Web of Science. This paper summarizes types of problem solving skills applied in the engineering field as of now. Based on that, engineers can differentiate and understand the approach of the problem solving skills in the industrial environment to improve the failures and increase productivity.


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