This module has been developed from the Battelle Design Module Template. In this module, students build a solar cell using titanium dioxide (TiO2) extracted from donuts. Students initially conduct background research on dye- sensitized solar cells and the dyes used, and proceed to experimentally determine the best dye and TiO2 casting method to produce a solar cell. Students build their solar cells according to their research and experimental results, and test the function of the solar cell. Students write up a formal report to detail their findings.
As an LDC module, literacy skills are emphasized here. In addition, this module focuses on building strong lab skills. Students research and practice a variety of lab procedures in each phase of the module, and thereby become much more confident in the lab setting.
Production is the essence of STEM education. Purposeful production is the definition of design. The Battelle Design Module Template is based on the process Battelle Memorial Institute engineers go through in designing and prototyping solutions to the world's problems and opportunities. This process has led to the Xerox machine, the CD, and countless other innovations! This Template is meant to be applied in a "real-world" manner—optimally driven by authentic partnerships with your community. Your community partner can help identify a need and parameters for the students' design, as well as then serving as an authentic audience for your students' work. There is a world of opportunities out there that is waiting for our students' design ability. Use this LDC module to help the students scaffold and capture their design process with excellence.
Note: The Design Process requires that students already have the ability to test solutions in a controlled manner (i.e., carry out a controlled experiment). It is advisable, therefore, that your students be relatively fluent in experimentation prior to completing this module. If your students do not yet have a sound foundation in experimentation, please see the Battelle Education Controlled Experiment Module Template. These modules are part of a three-part Battelle LDC Science Collection: Data Analysis, Controlled Experimentation, and Design. The series represents a continuum of skills that build upon each other.
We thank David Chase (Principal Research Scientist at Battelle) for his assistance in sharing his work processes and providing real world examples to include in this module.
