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Ill-structured Problems (ill-structured + problem)

Distribution by Scientific Domains

Education	50%
Business, Economics, Finance and Accounting	50%

Selected Abstracts

Cultivating problem-solving skills through problem-based approaches to professional development

HUMAN RESOURCE DEVELOPMENT QUARTERLY, Issue 3 2002
Margaret C. Lohman
An extensive literature review was conducted of four problem-based approaches to professional development: (1) case study, (2) goal-based scenario, (3) problem-based learning, and (4) action learning. The review comparatively analyzed the training designs of these four approaches and found key differences in the nature of their case problems and training strategies. Specifically, the analysis found that case problems are ill structured in action learning and problem-based learning, are moderately structured in a goal-based scenario, and are fairly well structured in the case study approach. In addition, it was found that prototypical problems are used to a much greater extent in the problem-based learning and goal-based scenario approaches than they are in the other two approaches. Furthermore, the analysis found that the case study approach uses the most expert-oriented training strategy, the goal-based scenario approach uses a more learner-oriented strategy than the case study approach, and the problem-based learning and action learning approaches use strongly learner-oriented strategies. These design differences suggest that the case study and goal-based scenario approaches are more likely to result in single-loop learning and to foster the ability to solve well-structured problems, whereas the problem-based learning and action learning approaches are more likely to lead to double-loop learning and to promote the ability to solve ill-structured problems. Implications of these findings for the design and research of problem-based approaches to professional development are discussed. [source]

Advancing reflective judgment through Socioscientific Issues

JOURNAL OF RESEARCH IN SCIENCE TEACHING, Issue 1 2009
Dana L. Zeidler
Abstract The purpose of this investigation was to explore possible relationships between Socioscientific Issues instruction and students' development of reflective judgment. The usefulness of the Reflective Judgment Model as a tool for assessing the value of SSI is established in the parallels that can be drawn between them. Both involve ill-structured problems requiring evidence-based reasoning subject to differing interpretations by students, and both require examination, analysis and the blending of scientific and normative evidence, as students use that evidence to support a reasoned position. Results demonstrated both qualitative evidence revealing more sophisticated and nuanced epistemological stances toward higher stages of reflective judgment, as well as statistically significant gains within treatment groups with a moderately large effect size. Theoretical implications for advancing students' epistemological beliefs about evidence-based argumentation and pedagogical implications for rethinking how to connect science with topics that are fundamentally meaningful to students are discussed. © 2008 Wiley Periodicals, Inc. J Res Sci Teach 46: 74,101, 2009 [source]

How instructional design experts use knowledge and experience to solve ill-structured problems

PERFORMANCE IMPROVEMENT QUARTERLY, Issue 1 2008
Peggy A. Ertmer
This study examined how instructional design (ID) experts used their prior knowledge and previous experiences to solve an ill-structured instructional design problem. Seven experienced designers used a think-aloud procedure to articulate their problem-solving processes while reading a case narrative. Results, presented in the form of four assertions, showed that experts (1) narrowed the problem space by identifying key design challenges, (2) used an amalgam of knowledge and experience to interpret the problem situation, (3) incorporated a mental model of the ID process in their problem analyses, and (4) came to similar conclusions about how to respond to the situation, despite differences in their initial conceptualizations. Implications for educating novice instructional designers are discussed. [source]

Effectiveness of problem-based learning on academic performance in genetics

BIOCHEMISTRY AND MOLECULAR BIOLOGY EDUCATION, Issue 6 2007
Gülsüm Araz
Abstract This study aimed at comparing the effectiveness of problem-based learning (PBL)1 and traditional lecture-based instruction on elementary school students' academic achievement and performance skills in a science unit on genetics while controlling for their reasoning ability. For the specified purpose, twoinstructional methods were randomly assigned to intact classes of two different teachers. Each teacher had both PBL classes and traditional classes. Although students in PBL classes (n = 126) worked on ill-structured problems cooperatively with the guidance of the teacher, students in traditional classes (n = 91) received instruction based on teacher's explanations, discussions, and textbooks. Genetics Achievement Test was developed by researchers to measure the academic achievement and performance skills. Multivariate Analysis of Covariance results showed that the PBL students had higher academic achievement and performance skills scores (M = 11.44 and M = 2.67, respectively) when compared with those in traditional classes (M = 10.91 and M = 2.20, respectively). This indicated that the PBL students tend to better acquire scientific conceptions related to genetics and integrate and organize the knowledge. Moreover, it was found that the reasoning ability explained a significant portion of variance in the scores of academic achievement and performance skills. [source]