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Build and Test a Conductivity Probe with Arduino
Read the Fine Print
Educational Use
Rating

Student groups construct simple conductivity probes and then integrate them into two different circuits to test the probe behavior in solutions of varying conductivity (salt water, sugar water, distilled water, tap water). The activity culminates with student-designed experiments that utilize the constructed probes. The focus is to introduce students to the fabrication of the probe and expose them to two different ways to integrate the probe to obtain qualitative and quantitative measurements, while considering the application and utility of a conductivity probe within an engineering context. A provided handout guides teams through the process: background reading and questions; probe fabrication including soldering; probe testing and data gathering (including circuit creation on breadboard); probe connection to Arduino (including circuit creation and code entry) and a second round of testing and data gathering; design and conduct their own lab experiments that use the probes; online electrolyte/nonelectrolyte reading, short video, comprehension check and analysis questions.

Subject:
Career and Technical Education
Physical Science
Chemistry
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Iulian Irimina
Phillip Cook
Date Added:
02/17/2017
Data types
Only Sharing Permitted
CC BY-NC-ND
Rating

Epidemiological investigation requires a good understanding of different data types, as this will strongly influence data analysis and interpretation. Data can broadly be classified as qualitative and quantitative, and within each of these groups, data can be further categorised as shown below. Although different grouping systems are available, it is important to consider the type of data being dealt with prior to any analysis. If desired, data can often be changed into different types through manipulation (for example, the quantitative variable weight can be converted to qualitative variables such as low/medium/high or low/not low).

Subject:
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
WikiVet
Provider Set:
Veterinary Epidemiology
Date Added:
02/27/2015
Don't Confuse Your Qs!
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Educational Use
Rating

Students investigate the difference between qualitative and quantitative measurements and observations. By describing objects both qualitatively and quantitatively, they learn that both types of information are required for complete descriptions. Students discuss the characteristics of many objects, demonstrating how engineers use both qualitative and quantitative information in product design.

Subject:
Education
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Denise W. Carlson
Malinda Schaefer Zarske
Megan Schroeder
Date Added:
10/14/2015
How Mosquitoes Can Fly in the Rain
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating

In this lesson, we learn how insects can fly in the rain. The objective is to calculate the impact forces of raindrops on flying mosquitoes. Students will gain experience with using Newton's laws, gathering data from videos and graphs, and most importantly, the utility of making approximations. No calculus will be used in this lesson, but familiarity with torque and force balances is suggested. No calculators will be needed, but students should have pencil and paper to make estimations and, if possible, copies of the graphs provided with the lesson. Between lessons, students are recommended to discuss the assignments with their neighbors.

Subject:
Physics
Material Type:
Activity/Lab
Lecture Notes
Lesson Plan
Provider:
MIT
Provider Set:
MIT Blossoms
Author:
David Hu
Date Added:
10/29/2012
Improving the credibility of empirical legal research: practical suggestions for researchers, journals, and law schools
Only Sharing Permitted
CC BY-NC-ND
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Fields closely related to empirical legal research are enhancing their methods to improve the credibility of their findings. This includes making data, analysis code, and other materials openly available, and preregistering studies. Empirical legal research appears to be lagging behind other fields. This may be due, in part, to a lack of meta-research and guidance on empirical legal studies. The authors seek to fill that gap by evaluating some indicators of credibility in empirical legal research, including a review of guidelines at legal journals. They then provide both general recommendations for researchers, and more specific recommendations aimed at three commonly used empirical legal methods: case law analysis, surveys, and qualitative studies. They end with suggestions for policies and incentive systems that may be implemented by journals and law schools.

Subject:
Law
Material Type:
Reading
Author:
Alexander DeHaven
Alex Holcombe
Crystal N. Steltenpohl
David Mellor
Jason Chin
Justin Pickett
Kathryn Zeiler
Simine Vazire
Tobias Heycke
Date Added:
11/13/2020
Not So Simple
Read the Fine Print
Educational Use
Rating

Students expand upon their understanding of simple machines with an introduction to compound machines. A compound machine a combination of two or more simple machines can affect work more than its individual components. Engineers who design compound machines aim to benefit society by lessening the amount of work that people exert for even common household tasks. This lesson encourages students to critically think about machine inventions and their role in our lives.

Subject:
Engineering
Physics
Material Type:
Activity/Lab
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Janet Yowell
Malinda Schaefer Zarske
Michael Bendewald
Date Added:
09/18/2014
Quantitative Research Methods for Political Science, Public Policy and Public Administration for Undergraduates: 1st Edition With Applications in Excel
Unrestricted Use
CC BY
Rating

Quantitative Research Methods for Political Science, Public Policy and Public Administration for Undergraduates: 1st Edition With Applications in Excel is an adaption of Quantitative Research Methods for Political Science, Public Policy and Public Administration (With Applications in R). The focus of this book is on using quantitative research methods to test hypotheses and build theory in political science, public policy and public administration. This new version is designed specifically for undergraduate courses. It omits large portions of the original text that focused on calculus and linear algebra, expands and reorganizes the content on the software system by shifting to Excel and includes guided study questions at the end of each chapter.

Subject:
Political Science
Material Type:
Textbook
Provider:
East Tennessee State University
Author:
Aaron Fister
Gary Copeland
Hank Jenkins-Smith
Joseph Ripberger
Josie Davis
Matthew Nowlin
Tracey Bark
Tyler Hughes
Wehde Wesley
Date Added:
07/02/2020
Quantitative Research Methods for Political Science, Public Policy and Public Administration for Undergraduates: 1st Edition With Applications in R
Unrestricted Use
CC BY
Rating

Quantitative Research Methods for Political Science, Public Policy and Public Administration for Undergraduates: 1st Edition With Applications in R is an adaption of Quantitative Research Methods for Political Science, Public Policy and Public Administration (With Applications in R). The focus of this book is on using quantitative research methods to test hypotheses and build theory in political science, public policy and public administration. This new version of the text omits large portions of the original text that focused on calculus and linear algebra, expands and reorganizes the content on the software system R and includes guided study questions at the end of each chapter.

Subject:
Political Science
Material Type:
Textbook
Provider:
East Tennessee State University
Author:
Aaron Fister
Gary Copeland
Hank Jenkins-Smith
Joseph Ripberger
Josie Davis
Matthew Nowlin
Tyler Hughes
Wehde Wesley
Date Added:
07/02/2020
Statistics Sampling and Data: Data
Unrestricted Use
CC BY
Rating

This module introduces the concepts of qualitative data, quantitative continuous data, and quantitative discrete data as used in statistics. Sample problems are included.

Subject:
Statistics and Probability
Material Type:
Reading
Provider:
Rice University
Provider Set:
Connexions
Author:
Barbara Illowsky
Susan Dean
Date Added:
02/16/2011