The triangle of thinking levels that has become the dominant metaphor for chemistry
education has served us well. As that metaphor reminds us, students need to
encounter chemistry at the macroscopic, submicroscopic, and symbolic levels
to make sense of the molecular world. Yet concerns about public understanding
of and trust in chemistry, coupled with the need to continue to attract students
into the profession, underscore the importance of framing chemistry education
in new ways. This article proposes a new conceptual metaphor to enrich our
description of chemistry education and support the many existing efforts to
help students make connections with the chemistry found in textbooks. It proposes
a metaphorical rehybridization of that triangle of thinking levels into a tetrahedron,
where the fourth vertex represents the web of human contexts for chemistry.
Tetrahedral chemistry education may reenergize learning inside and beyond the
classroom by (i) providing a framework for curriculum reform, (ii) focusing
on the processes of science, (iii) "discovering" the history and philosophy
of chemistry, (iv) building trust in and public understanding of chemistry,
and (v) reaching across cultures.
Applications of Chemistry; Atmospheric Chemistry; Communication / Writing; Curriculum; First-Year Undergraduate / General; General Public; High School / Introductory Chemistry; History / Philosophy; Learning Theories; Nonmajor Courses; Public Understanding / Outreach; Second-Year Undergraduate; Student-Centered Learning
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