Abstract
This article describes the substance, structure, and rationale of a learning progression in genetics spanning kindergarten through twelfth grade (K-12). The learning progression is designed to build a foundation towards understanding protein structure and activity and should be viewed as one possible pathway to understanding concepts of genetics and ultimately protein expression, based on the existing research. The kindergarten through fifth grade segment reflects findings that show children have a rich knowledge base and sophisticated cognitive abilities, and therefore, is designed so that elementary-aged children can learn content in deep and abstract manners, as well as apply scientific explanations appropriate to their knowledge level. The article also details the LP segment facilitating secondary students’ understanding by outlining the overlapping conceptual frames which guide student learning from cell structures and functions to cell splitting (both cell division and gamete formation) to genetics as trait transmission, culminating in genetics as protein expression. The learning progression product avoids the use of technical language, which has been identified as a prominent source of student misconceptions in learning cellular biology, and explicit connections between cellular and macroscopic phenomena are encouraged.
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Notes
“Cells store and use information to guide their functions. The genetic information stored in DNA is used to direct the synthesis of the thousands of proteins that each cell requires” (National Research Council 1996, p. 184)
It is important to note that we did not develop priority ideas for the first conceptual framework (“basic needs”) since the core understanding (i.e., “the requirements for life include food, nutrients, air, water, and proper habitat”) is necessarily included in its entirety in the learning progression.
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This research was supported by the National Science Foundation’s Centers for Learning and Teaching (CLT) program (grant #ESI-0227619).
This article is the result of the collaboration and effort of the following individuals who were part of the Learning Progression research team: Jill McNew-Birren, Leslie Oliver, Andrea Gay Van Duzor, Phyllis Balcerzak, Mark Hogrebe, Jennifer Iverson, Lydia Kyei-Blankson, and Tommie Turner. I acknowledge their contributions and extend sincere appreciation.
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Elmesky, R. Building Capacity in Understanding Foundational Biology Concepts: A K-12 Learning Progression in Genetics Informed by Research on Children’s Thinking and Learning. Res Sci Educ 43, 1155–1175 (2013). https://doi.org/10.1007/s11165-012-9286-1
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DOI: https://doi.org/10.1007/s11165-012-9286-1