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Stoogiometry: A Cognitive Approach to Teaching Stoichiometry

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Carla R. Krieger

Pleasant Valley High School, Route 209, Brodheadsville, PA 18322

J. Chem. Educ., 1997, 74 (3), p 306

DOI: 10.1021/ed074p306

Publication Date (Web): March 1, 1997

Section:

History, Education, and Documentation

Abstract

Moe's Mall is a locational device designed to be used by learners as a simple algorithm for solving mole-based exercises efficiently and accurately. The mall functions as a map for setting up solutions to mole-based exercises using dimensional analysis. It clears the cognitive decks of students' easily overburdened short-term memory space, allowing them to focus on the versatility of the mole, rather than stepwise solutions to meaningless exercises. From simple mass-particle-molarity exercises, students can use the mall to progress rapidly to mole-mole, mole-mass, mass-mass, and solution stoichiometry exercises. The mall is easily expanded to help students map solutions to gas stoichiometry problems, such as mass-volume or volume-volume, under nonstandard as well as standard conditions. Thus, Moe's Mall can be used to solve a variety of mole-based exercises using dimensional analysis. Once the learner has acquired this device, she will have developed a scientifically sound schema for the mole concept.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Feature):

View from My Classroom

Keywords (Subject):

Learning Theories

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This article has been cited by 4 ACS Journal articles (4 most recent appear below).

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  Journal of Chemical Education2001 78 (10), 1345
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Developing an Intuitive Approach to Moles
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Journal of Chemical Education2000 77 (8), 1007
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  Journal of Chemical Education2000 77 (8), 1007
  The mole is an important theoretical concept and a powerful tool in the study of chemistry. Traditional approaches to teaching the mole focusing on memorization and rote learning do not help students to develop the conceptual understanding and problem-...
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