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Physical Sciences and Mathematics Commons™
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Full-Text Articles in Physical Sciences and Mathematics
Use Of Calculators In High School Mathematics, Alex Mcdaniel
Use Of Calculators In High School Mathematics, Alex Mcdaniel
Williams Honors College, Honors Research Projects
For many collegiate level mathematics courses at universities across the country, students are not allowed to use calculators. This is often a huge adjustment for students who have spent their entire high school career using calculators. Whether it is graphing or simple arithmetic, students relied on calculators in high school, but for college, the tool of a calculator may not be available for them. This leads to a multitude of questions: Should calculators be used in high school? Do calculators help students learn or are they simply a tool to get answers? Are calculators beneficial in some courses, but not …
Chemical Kinetics Using A Smartphone Spectrometer, Mary Greggila
Chemical Kinetics Using A Smartphone Spectrometer, Mary Greggila
Williams Honors College, Honors Research Projects
In a time where many high school science classes are lacking in quality laboratory education, there is a need for accessible chemical equipment that enhance teaching fundamental concepts of chemistry with ease and at a low cost. The DualSpec handheld smartphone spectrometer aims to be a quality open-source spectroscopic instrument that can easily be made and used at home by people of any scientific level. This research sought to show that the DualSpec could be used to teach higher level spectroscopic concepts such as those used in chemical kinetics. The DualSpec was compared to a commercial spectrometer using the commonly …
Creation Of A Portable, 3d-Printable, Iphone-Compatible Spectrophotometer, Elise K. Grasse
Creation Of A Portable, 3d-Printable, Iphone-Compatible Spectrophotometer, Elise K. Grasse
Williams Honors College, Honors Research Projects
Spectroscopy is a widely used chemical and medical analysis tool. While spectrophotometers are commonly found in many universities and laboratories, they are not available to all high schools or laboratories in developing countries. The objective of this project was to design a high-quality, 3D-printable, iPhone-compatible spectrophotometer that uses a cell phone camera and interface to collect data. The created 3D-print file will be available to anyone with access to a 3D printer which are increasingly found in many laboratories and schools across the country. A low cost pre-printed kit will also be made for those without access to a 3D …