This study examined the value added to standard textbook-based instruction of plant biodiversity by the use of the exemplary interactive CD-ROM, Conserving Earths Biodiversity. This CD-ROM features renowned conservation figure E.O. Wilson. The setting of the research was an introductory biology course in a rural public community college in the Deep South. Six participants were purposively selected to represent three levels of achievement and two groups, the CD-ROM group (exposed to CD-ROM in addition to the textbook) and the textbook group (only course textbook). Students experienced lecture-based, textual, virtual, and real experiences, and examined their ability to understand biodiversity-related concepts and to pursue guided-inquiry questions about local plant biodiversity. Their performance was assessed through activities, quizzes, concept maps, interviews, surveys, and students presentations.
This study led to three main findings. First, use of the CD-ROM, in addition to the textbook, allowed students to form a well-rounded grasp of plant biodiversity. Second, use of the CD-ROM enhanced the development of inquiries on local plant biodiversity and the metacognitive phase of assigning roles for local plant diversity. Third, the Plant Biodiversity Literacy Rubric [PBLR] was developed, based upon the history of the concept of biodiversity and was used to evaluate students progress by assigning them to various levels of understanding during the study.
The students in the CD-ROM group gained a broader perspective of plant biodiversity-related concepts, such as levels of biodiversity, hot spots, genetic diversity, food plant diversity, and threats to biodiversity. The CD-ROM was never detrimental to the learning process. They were more self-directed in their development of inquiries, felt more confident about their presentations, and were more metacognitive during their inquiries. Performance on specific activities such as the essay and The Golden List of Species suggested an enhanced cognitive-behavioral/affective experience for students in the CD-ROM group.
The PBLR is an exportable instrument, which may allow ecology educators at all levels to assess students levels of understanding in a sensitive way. At this time, it is critical to gauge effective understanding of plant biodiversity and ecology education, as it is vital to the survival and well-being of life on Earth.
Identifer | oai:union.ndltd.org:LSU/oai:etd.lsu.edu:etd-07102007-154149 |
Date | 12 July 2007 |
Creators | Guzman-Rodriguez, Sandra M. |
Contributors | Charles B. Teddlie, Edward C. McGawley, Earl H. Cheek, James H. Wandersee, William J. Platt |
Publisher | LSU |
Source Sets | Louisiana State University |
Language | English |
Detected Language | English |
Type | text |
Format | application/pdf |
Source | http://etd.lsu.edu/docs/available/etd-07102007-154149/ |
Rights | unrestricted, I hereby certify that, if appropriate, I have obtained and attached herein a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to LSU or its agents the non-exclusive license to archive and make accessible, under the conditions specified below and in appropriate University policies, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. |
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