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Community college students' plant biodiversity learning experience in an introductory biology course: exploring the value added by using a CD-ROM to develop inquiry lessons

This study examined the value added to standard textbook-based instruction of plant biodiversity by the use of the exemplary interactive CD-ROM, Conserving Earth’s 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 guidedinquiry 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 CDROM 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