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ERIC Number: EJ1063797
Record Type: Journal
Publication Date: 2006
Pages: 10
Abstractor: As Provided
Reference Count: 6
ISSN: EISSN-1557-5284
Quantifying Aluminum Crystal Size Part 2: The Model-Development Sequence
Hjalmarson, Margret; Diefes-Dux, Heidi A.; Bowman, Keith; Zawojewski, Judith S.
Journal of STEM Education: Innovations and Research, v7 n1-2 p67-73 Jan-Jun 2006
We have designed model-development sequences using a common context to provide authentic problem-solving experiences for first-year students. The model-development sequence takes a model-eliciting activity a step further by engaging students in the exploration and adaptation of a mathematical model (e.g., procedure, algorithm, method) for solving a problem for a realistic client. Here we describe an entire model-development sequence in which first-year engineering students are asked to develop, explore, and adapt a model for quantifying the size of aluminum crystals using digital images in response to the needs of an aluminum manufacturer. The intent of this paper is to highlight, by example, the components and educational value of a model-development sequence. [For "Quantifying Aluminum Crystal Size Part 1: The Model-Eliciting Activity," see EJ1063793.]
Institute for STEM Education and Research. P.O. Box 4001, Auburn, AL 36831. Tel: 334-844-3360; Web site:
Publication Type: Journal Articles; Guides - Classroom - Learner; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education
Audience: Students
Language: English
Sponsor: National Science Foundation
Authoring Institution: N/A
Identifiers - Location: Indiana
Grant or Contract Numbers: 0120794