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WHDL - 00010012
In this study, a design-based research approach was used in the creation of data-rich problem (DRP) tasks intended to support students constructing knowledge about food webs and ecosystem dynamics, specifically the effects from a loss of species. This iterative process of DRP task creation included qualitative results from two rounds of interviews. The interview results informed the creation of a set of DRP tasks that were implemented in two 7th grade science classrooms. Qualitative results from the culminating assessment demonstrate that students reached proficiency in “dissipation vs. persistence” and “energy arrows concepts”, and are approaching proficiency in “linear vs. nonlinear” and “food chain concepts”. These findings provide evidence of the effectiveness of design-based research and data-rich tasks in promoting students’ understanding of ecosystem dynamics.
18 Resources
This collection consists of theses for the Master of Science in General Biology at Point Loma Nazarene University. These items were provided to the library by their authors with the permission required to make them freely available for access. These works remain the intellectual property of their authors.