This study explored the effects of Problem-Based Leaning (PBL) with webanchored instruction in nanotechnology on the science conceptual understanding, the attitude towards science, and the perception of science in society of elementary students. A mixed-methods approach was used. Subjects (N=46) participated in the study for approximately two and a half weeks. A pretest was administered for science conceptual understanding and for attitude towards science. An intervention, web-based nanotechnology anchor, Catching the Rays, followed. Catching the Rays navigated subjects through a nano quest on sunscreen. After the intervention, a posttest was administered for each science conceptual understanding and attitude towards science. Following, a purposeful selection of interviewees (N=6) participated in a Nano Post- Interview. Pretest/posttest data were analyzed using a paired t test. Results of the paired t test for science conceptual understanding (post- being larger than pre-, p <. 01) and attitude towards science (post- being larger than pre-, p < .01) were significant at the p < .05 alpha level. Nano Post-Interview data were coded and analyzed independently by two raters for emerging themes. Two themes of "Risks and Benefits" and "Solves Problems" emerged from subjects' (N=6) responses to perception of science in society questions. The theme of "Risks and Benefits" strongly suggests that subjects have a positive perception that nanotechnology comes with risks and benefits to society. The theme of "Solves Problems" strongly suggests subjects have a positive perception that nanotechnology is governed by society's needs and is used to help solve society's problems. Findings from this study suggest that PBL with web-anchored instruction in nanotechnology had a positive effect on subjects' science conceptual understanding, attitude towards science, and perception of science in society. / by Karla Anne Yurick. / Vita. / Thesis (Ed.D.)--Florida Atlantic University, 2011. / Includes bibliography. / Electronic reproduction. Boca Raton, Fla., 2011. Mode of access: World Wide Web.
| Identifer | oai:union.ndltd.org:fau.edu/oai:fau.digital.flvc.org:fau_3745 |
| Contributors | Yurick, Karla Anne., College of Education, Department of Curriculum, Culture, and Educational Inquiry |
| Publisher | Florida Atlantic University |
| Source Sets | Florida Atlantic University |
| Language | English |
| Detected Language | English |
| Type | Text, Electronic Thesis or Dissertation |
| Format | xiv, 109 p. : ill., electronic |
| Rights | http://rightsstatements.org/vocab/InC/1.0/ |
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