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Exploiting Polarization: Designing More Effective Sunglasses
| Content Provider | TeachEngineering: STEM curriculum for K-12 |
|---|---|
| Author | Alster, Adam Tran, Quan Kim, Drew |
| Copyright Year | 2018 |
| Description | Students apply their understanding of light polarization and attenuation to design, fabricate, test and refine their own prototype sunglasses that better reduce glare and lower light intensity compared to available sunglasses, and better protect eyes from UVA and UVB radiation. They meet the project requirements and constraints, use a light sensor to measure and analyze light intensity, tally their materials costs, and create an advertisement using data to support their benefit and improvement claims. Students apply what they know about light polarization and attenuation (learned in the associated lesson) to design, build, test, refine and then advertise their prototypes for more effective sunglasses. Presented as a hypothetical design scenario, students act as engineers who are challenged to create improved sunglasses that reduce glare and lower light intensity while increasing eye protection from UVA and UVB radiation compared to an existing model of sunglasses—and make them as inexpensive as possible. They use a light meter to measure and compare light intensities through the commercial sunglasses and their prototype lenses. They consider the project requirements and constraints in their designs. They brainstorm and evaluate possible design ideas. They keep track of materials costs. They create and present advertisements to the class that promote the sunglasses benefits, using collected data to justify their claims. A grading rubric and reflection handout are provided. |
| Language | English |
| Access Restriction | Open |
| Rights Holder | Regents of The University of Colorado Michigan State University |
| Subject Keyword | Data Analysis and Probability Physics Problem Solving |
| Content Type | Text |
| Time Required | PT1H30M |
| Education Level | Class IX Class X Class XI Class XII |
| Pedagogy | Experimental Activity |
| Resource Type | Hands-on |
| Subject | Physics Probability |
