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Ecological Core Concepts -- The science of ecology -- Scientific method and experimental design

View Resource Evaluating the Impact of TIEE Activities on Student Learning: Lessons for the Instructor

The author of this TIEE Research Paper assessed the use of student-active activities to teach students to use the scientific method and improve their understanding of basic ecological concepts. The author used TIEE exercises and student-active methods such as turn-to-your-neighbor and jigsaw activities to engage her students. The study was conducted in a sophomore level ecology course. Although...


Publisher: EcoEd Digital Library

View Resource Semester-long Engagement in Science Inquiry Improves Students' Understanding of Experimental Design

The author of this TIEE Research Paper assessed changes in students' understanding of experimental design during a semester-long, inquiry-based, plant ecology laboratory. Students learned about and designed experiments to address four hypotheses about invasive species. Students were given similar pre- and post- tests in both years. Student knowledge self assessment questions were added in 2005....


Publisher: EcoEd Digital Library

View Resource Use of an Inquiry-based Approach to Teaching Experimental Design Concepts in a General Ecology Course

The author of this TIEE Research Paper assessed student understanding of experimental design at the beginning and again at the end of a general ecology course in order to understand the impact of guided inquiry activities. Students participated in a series of labs in which they had increasing levels of responsibility for designing experiments or observational studies. Concepts of experimental...


Publisher: EcoEd Digital Library

View Resource Seedling Growth of Wisconsin Fast Plants (Brassica rapa) in Field Environments

In this Experiment, students investigate the effects of ecological factors on the growth of Wisconsin Fast Plants, also known as rapid-cycling brassica (Brassica rapa L.). Treatments could include light, wind, herbivory, fertilizer, or insecticides. Variables to be measured could include growth (height, number of leaves, leaf area) or reproduction (number of flowers). Wisconsin Fast Plants have...


Publisher: EcoEd Digital Library

View Resource Exploring the Lotka-Volterra Competition Model with Two Species of Parasitoid Wasps

In this Experiment, students design an experiment to examine intraspecific and interspecific competition using two species of parasitoid wasps (Nasonia vitripennis and Melittobia digitata). Students examine the effect of both types of competition on reproductive output in the wasps. One or two females are placed on a single host: alone, or a competitor of the same species (intraspecific), with a...


Publisher: EcoEd Digital Library

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