ChemEd X contributors offer their ideas and opinions on a broad spectrum of topics pertaining to chemical education.

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by Lowell Thomson
Wed, 05/20/2015 - 03:41

My IB chemistry class is currently working its way through organic chemistry. One of the topics studied is the free-radical mechanism for the halogenation of an alkane.



Recent activity: 4 years 7 months ago
by Shelly Belleau
Fri, 05/08/2015 - 09:55

n teaching we regularly change our class structures and routines and we implement new “interventions” in hopes of changing classroom dynamics or reaching more students.  I know that most of the time I make these decisions based upon anecdotal evidence, perhaps after glancing at a handful of exit tickets from my students or based upon how I “felt” the class went.  Recently, though, I’m finding myself a little more hesitant when making a claim about my class.  I require that my students support their claims with evidence, so why wouldn’t I also support mine with evidence? 


Comments: 2
Recent activity: 1 year 5 months ago
by Deanna Cullen
Wed, 05/06/2015 - 15:33

I have been involved in several types of community outreach projects to promote science education and chemistry. One of the best was a biannual event I worked on with teachers from each elementary school in our district and from our middle school. It was a Science Extravaganza.

Recent activity: 1 year 8 months ago
by Erica K. Jacobsen
Fri, 05/01/2015 - 12:28

“What are you reading?” This twist on the traditional icebreaker question kicked off a meeting session last summer. I was eager for the conversation to make its way around the table to me. On my plane ride the day before, I’d started The Martian by Andy Weir, and I was hooked.

Recent activity: 1 year 5 months ago
by Tom Kuntzleman
Tue, 04/28/2015 - 16:45

The “Elephant Toothpaste” experiment is a very popular, albeit messy chemistry demonstration. To carry out this experiment, place a 250 mL graduated cylinder on something that you wouldn’t mind getting messy.

Recent activity: 1 year 5 months ago
by Allison Tarvin
Thu, 04/23/2015 - 19:15

Have you read “Making Thinking Visible”?  You should. It focuses on making student thinking visible to the teacher. While still learning to use the visible thinking routines, I really feel more conscious of students’ understandings than ever.  

Here is a sample activity that I adapted to fit my honor chemistry students’ needs:

Recent activity: 4 years 7 months ago
by Sarah Kong
Thu, 04/16/2015 - 19:29

Last night I had the opportunity to do another lab that I wrote with my students.  It is so exciting to see something go from words on a screen to a group of students working together in a laboratory.  I learned so much as I walked around the room last night.  Here are a few highlights:

Comments: 3
Recent activity: 1 year 5 months ago
by Doug Ragan
Fri, 04/10/2015 - 15:57

 Last year while attending the Biennial Conference on Chemical Education at GVSU I had the opportunity to hear a talk that showed a video of a chemical demonstration showing the burning of magnesium metal.  We have all seen many of these videos (thank you YouTube) and probably have performed this demo for our own students many times.  During the video it may have been represented with a chemical equation followed by the students being asked to balance the equation or maybe even predict the products.  Although the use of video including the showing of the equation nicely represents the macroscopic and symbolic representation, what was so unique about this particular video is that it also included the particulate representation embedded on top of the video of the demo.  This was the first time I had seen the particulate level representation done like that and so I was intrigued in wanting to find more of these representations.  

Recent activity: 1 year 5 months ago
by Deanna Cullen
Thu, 04/09/2015 - 15:32

Since my l, there have been additional opportunities added for training. If you don't see a location that works for you on this list, check out the 


Recent activity: 1 year 5 months ago
by Dan Meyers
Wed, 04/08/2015 - 12:27

During our “Periodic Table and Periodicity" unit, we take about 3 days to learn the content and another 3-4 days to practice the content (more for Chemistry 1, less for Honors). One way that I have my students review the content is by playing a board game that I recreated from an NSTA conference a few years ago.

Comments: 4
Recent activity: 11 months 3 days ago