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Journal Article | March 2008
The indigo carmine demonstration (Ferguson et al. 1973), also referred to as a traffic-light demonstration (Flinn Scientific 2007a), is an example of a set of oxidation-reduction reactions that occurs within one…
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From Balancing Redox Reactions to Determining Change of Oxidation Numbers
Journal Article | January 2022
Redox reaction is a core concept in teaching and learning chemistry. This article explores a new method for balancing organic redox reactions that requires the balancing of both atoms and charges. The H+, O, H2O, and e…
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Issues of Question Equivalence in Online Exam Pools
Journal Article | March 2023
During the pandemic, the use of question pools for online testing was recommended to mitigate cheating, exposing multitudes of science, technology, engineering, and mathematics (STEM) students across the globe to this…
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Connecting pH and Molarity to Health Care
Journal Article | November 2022
Given the recent state of social distancing, the online lab experience discussed in this article offers an economical and versatile approach to online undergraduate chemistry lab instruction. With videoconferencing…
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Case Study | December 2017
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Lesson Plan | December 2022
The purpose of this assessment probe is to elicit students’ ideas about conservation of matter during a chemical change (oxidation). The probe is designed to find out if students think the mass changes as rust forms…
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Electric Cars and Hydrogen Fuel Cell Vehicles
Case Study | December 2018
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Breaking Bad: Real Science or Hollywood Science?
Case Study | February 2020
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Case Study | August 2022
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Bioluminescence and 16th-century Caravaggism
Case Study | September 2017
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The Biochemistry of Curly and Straight Hair
Case Study | January 2019
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Case Study | November 2015
12 Results