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

Blogs at ChemEd X reflect the opinions of the contributors and are open to comments. Only selected contributors blog at ChemEd X. If you would like to blog regularly at ChemEd X, please use our Contribution form to request an invitation to do so from one of our editors.

by Deanna Cullen
Wed, 08/03/2016 - 11:31

We are happy that you have chosen to attend our ChemEd X Professional Learning Community Workshop! Our hope is that you will leave with a better understanding of our mission for ChemEd X and you will be able to make better use of the site. If contributing content for publication is one of your goals, you will have a better understanding of that process.

Comments: 8
Recent activity: 2 years 3 months ago
by Michael Morgan
Sun, 07/31/2016 - 17:28

I am sitting in Greeley Colorado. It is the first day of the 2016 BCCE. Time to get my learn on! I have spent the last week pouring over the schedule and deciding what I want to attend and a huge problem has developed. I am double booked almost every day!

Recent activity: 2 years 3 months ago
by Deanna Cullen
Sat, 07/30/2016 - 05:59

Attending BCCE? Check out details of our schedule and booth to find us there!

Recent activity: 2 years 3 months ago
by Doug Ragan
Tue, 07/26/2016 - 15:03

A quick search on Amazon for a package of 144 ping pong balls and a trip to the arts and crafts store for paint, magnets, and glue and I was ready to start making my own class set of model kits.

Recent activity: 1 year 6 months ago
by Chad Husting
Thu, 07/21/2016 - 15:40

One of my biggest struggles with students is to try to explain what happens when items, specific inorganic salts, dissolve in water. It might sound simple to me and you. Research shows that students have many real misconceptions when it comes to explaining inorganic salts dissolving in water. My own experience along with other teachers I know is that we are amazed and sometimes frustrated with trying to help students understand the simple process of dissolving, especially with ions. A key piece of equipment is a good conductivity tester. Just got done making a stack of them and can't wait to have students try them. But back to "dissolving"....

Comments: 7
Recent activity: 2 years 3 months ago
by Allison Tarvin
Fri, 07/15/2016 - 20:15

My students are bright and motivated. Most work hard and prepare for class and tests. They perform extremely well on district-wide tests and my own classroom tests. However, I see real weaknesses on cumulative assessments requiring high levels of application. My students simply do not retain the content knowledge. I want to restructure my course to exclude "unit tests" and include only cumulative assessments. I'll share my early ideas here, and I would love to hear your experiences.

Comments: 9
Recent activity: 1 year 6 months ago
by Tom Kuntzleman
Wed, 07/13/2016 - 16:43

In Chemical Mystery #7, a can of Coca-Cola was observed to sink in one container of water and yet float in another! This trick made use of the fact that the density of water changes with temperature.

Recent activity: 10 months 4 weeks ago
by Chad Husting
Tue, 07/12/2016 - 13:18

It all started with a class my son and I took together at Marc Adams School of Woodworking (link is external). To make a long story short, we started on a Saturday morning with nothing and left Sunday afternoon with a custom built longboard. (Think skateboard but...well...longer).

Recent activity: 2 years 3 months ago
by Tom Kuntzleman
Wed, 07/06/2016 - 14:11

​Q: Does an unopened can of soda pop float or sink in water?

A: It depends!

See if you can figure out what is happening in this twist on the classic floating-and-sinking soda can experiment.

Recent activity: 1 year 2 months ago
by Tracy Schloemer
Tue, 07/05/2016 - 19:32

In my last post, I discussed my first year chemistry scope and sequence. Here, I continue with AP chemistry scope and sequence, and a little bit with how I developed it the year before, the summer before, and during the year. Keep in mind, I consider the work I do with students to always be a project in progress. I learn so much from working with them as they engage with the content through a different perspective than I have.

Comments: 4
Recent activity: 2 years 3 months ago