Articles from twitter
Doug Ragan | Wed, 05/07/2014 - 23:58
In reference to the recent posting by Deanna Cullen and the list of where to find articles such as
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JCE ChemEd Xchange provides a place for sharing information and opinions. Currently, articles, blogs and reading lists from ChemEd X contributors are listed below. We plan to include other items that the community wishes to share through their contributions to ChemEd X.
How do you teach "entropy" to high school students?
Deanna Cullen | Wed, 05/07/2014 - 11:49
I was recently drawn to an article published ASAP in JCE entitled Application of the Second Law of Thermodynamics To Explain the Working of Toys. Erick Castellon wrote the article highlighting the use of three toys that are used to help students develop an understanding of the second law of thermodynamics and entropy by having them observe the working of the toys and the energy transfers that occur while playing with them. I already had two of the toys, the radiometer and the drinking bird. I ordered the stirling engine from the link provided in the supporting information. As I waited for the stirling engine to arrive from Japan (which was only a few days) I attempted to write an activity to guide my students to conceptual understanding as they worked with the toys.
Solution to Chemical Riddle #2
Tom Kuntzleman | Wed, 05/07/2014 - 10:18
Check out the answer to Chemical Riddle #2.
A Modeling Approach to Energy Storage and Transfer
Erica Posthuma | Sat, 05/03/2014 - 15:57
From the misconceptions fostered by the biology textbooks using the phrase “high-energy phosphate bond” to idea that energy comes in different forms, the Modeling community recognizes the challenges of teaching the energy concept and has developed a way of talking about energy designed to help students construct a consistent and cohesive model.
Bountiful answers from Brian
Sarah Kong | Fri, 05/02/2014 - 10:52
This month I spoke with Brian Brethauer who teaches chemistry and coaches Science Olympiad among other science activities on the west side if Michigan. Here are his responses to the 4 questions.
Q1: How do you define inquiry? What does inquiry look like to you?
Chemical Riddle #2
Tom Kuntzleman | Thu, 05/01/2014 - 15:41
A student of mine, Anthony Shepherd, and I worked together to develop a new chemical riddle. Check out the video and see if you can come up with an answer.
Introduction
Shelly Belleau | Wed, 04/30/2014 - 15:18
I am honored for the invitation to write for ChemEd X and am looking forward to being part of this collaborative chemistry teaching community! I’m Shelly Belleau, a Chemistry and Physics teacher in Colorado.
Endothermic and Exothermic Activity
Deanna Cullen | Tue, 04/29/2014 - 17:23
Endothermic and exothermic reactions and processes are a common topic in chemistry class. This activity provides examples that can be done with household materials.
Solution to Chemical Riddle #1
Tom Kuntzleman | Tue, 04/29/2014 - 09:15
In the video below, you can find the solution to the chemical riddle involving the food dye and bleach experiment. You can also find a description of how to set up and carry out the experiment. Finally, an extension to the activity is presented. Thanks to Erica Jacobsen, James Hanson, and Alfredo Ti
Ice Cream in a Bag
Deanna Cullen | Mon, 04/28/2014 - 13:10
Make ice cream in a baggie to emphasize energy changes, direction of energy transfer, dissolution and colligative properties.