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Winkelmann, Kurt; Keeney-Kennicutt, Wendy; Fowler, Debra; Lazo Macik, Maria; Perez Guarda, Paola; Joan Ahlborn, Connor – Interactive Learning Environments, 2020
Virtual worlds are increasingly popular in educational settings. In order to further usefulness in providing a laboratory education, almost 300 students participated in a study to determine the relative learning gains and attitudes related to performing two chemistry experiments in either the virtual world of Second Life (SL) or a real world…
Descriptors: College Freshmen, College Science, Chemistry, Computer Simulation
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Winkelmann, Kurt; Keeney-Kennicutt, Wendy; Fowler, Debra; Macik, Maria – Journal of Chemical Education, 2017
Virtual worlds are a potential medium for teaching college-level chemistry laboratory courses. To determine the feasibility of conducting chemistry experiments in such an environment, undergraduate students performed two experiments in the immersive virtual world of Second Life (SL) as part of their regular General Chemistry 2 laboratory course.…
Descriptors: Science Instruction, Chemistry, Science Laboratories, Laboratory Experiments
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Winkelmann, Kurt; Bernas, Leonard; Swiger, Brendan; Brown, Shannon – Journal of Chemical Education, 2017
A two-week experiment is presented in which students can observe the impact of nanoparticles on the concentration of chlorophyll in plants. First-year students in an introductory nanotechnology laboratory course and a general chemistry laboratory course synthesized silver nanoparticles and then exposed stalks of "Egeria densa" ("E.…
Descriptors: College Freshmen, Chemistry, Introductory Courses, Botany
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Winkelmann, Kurt; Baloga, Monica; Marcinkowski, Tom; Giannoulis, Christos; Anquandah, George; Cohen, Peter – Journal of Chemical Education, 2015
Research projects conducted by faculty in STEM departments served as the inspiration for a new curriculum of inquiry-based, multiweek laboratory modules in the general chemistry 1 course. The purpose of this curriculum redesign was to improve students' attitudes about chemistry as well as their self-efficacy and skills in performing inquiry…
Descriptors: Inquiry, Science Process Skills, Skill Development, Self Efficacy
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Winkelmann, Kurt; Scott, Matthew; Wong, Deborah – Journal of Chemical Education, 2014
A small group of high school students performed a virtual laboratory experiment in Second Life that mimicked a real experiment in both its appearance and procedure. Lab report grades were equivalent to report grades for hands-on experiments, and the quality of students' results was similar. Results of an attitudinal survey show that students…
Descriptors: High School Students, Secondary School Science, Science Instruction, Science Laboratories
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Zaccardi, Margot J.; Winkelmann, Kurt; Olson, Joel A. – Journal of Chemical Education, 2010
A first-year laboratory experiment that utilizes concepts of electrochemical tip etching for scanning tunneling microscopy (STM) is described. This experiment can be used in conjunction with any STM experiment. Students electrochemically etch gold STM tips using a time-efficient method, which can then be used in an instructional grade STM that…
Descriptors: Chemistry, Laboratory Equipment, College Freshmen, Science Experiments
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Winkelmann, Kurt; Noviello, Thomas; Brooks, Stephen – Journal of Chemical Education, 2007
The first year undergraduates use a simple method to synthesize 5-nm CdS nanoparticles in a water-in-oil microemulsion. The quantum size effect, the relationship between colors, optical absorbance, band-gap energy and the CdS particles affected by the formation of micelles are observed.
Descriptors: Undergraduate Students, College Freshmen, Laboratory Experiments, Science Experiments