In the summer of 2009, as an RET (Research Experience for Teachers), I joined the research team studying Echinacea angustifolia by assisting with ongoing research. I also prepared botanical collections for my classroom. These collections consist of flowering botanical specimens and prepared slides of fresh pollen from each plant. Digital images of fresh pollen from these plants were captured to build an online digital pollen library. A portion of the online pollen images serves as an original dichotomous hey to be constructed by students in 10th grade Biology. This article describes the field activities of the research team and the process for the plant and pollen collection as well as instructions for the pollen lesson implementation. The national content standards (9–12) for history and nature of science involved are G.1: “Develop an understanding of science as a human endeavor” and G.2: “Develop an understanding of the nature of scientific knowledge.”
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1 January 2011
Team Echinacea & Construction of a Key using Online Images of Fresh Prairie Plant Pollen
Gregory T. Diersen
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The American Biology Teacher
Vol. 73 • No. 1
January 2011
Vol. 73 • No. 1
January 2011
dichotomous key
Echinacea angustifolia
Inquiry
pollen