Doug Ragan's blog

A Better Way to Organize Laboratory Equipment

organizing laboratory equipment

I decided to take the time and to do some needed inventory.  I wanted to match equipment to its designated table.  Next, I wanted to make sure that each of my eight lab tables had the proper equipment needed to eliminate no more missing equipment.  Sure enough, as I began the inventory project, I had several tables missing equipment, so once everything was laid out and counted and organized then I had to make sure it was going to stay that way.  I had several rolls of colored tape and it was easy to then begin marking each of the pieces of equipment and glassware with tape. 

Brainstorming with the Alchemie Animator

screen shot of app description on iTunes store

 Alchemie Animator by Alchemie, LLC is the latest creation from Julia Winter, CEO of Alchemie and the creator of the app Chairs. The free app is available in the itunes store and is currently designed for both iPhone and iPad.

The Hindenburg

Teaching the Hindenburg disaster in the chemistry classroom.

I have always been intrigued by the story of the Hindenburg, the iconic airship that caught fire on May 6, 1937. The accident killed 35 of the 100 passengers and crewmembers on board. As a chemistry teacher, I discuss this from a chemical standpoint and the fact that the airship was filled with hydrogen, a flammable gas, rather than helium, a non-flammable gas, as today’s modern airships are.

The Importance of Safety.

testing the safety shower

 Undergraduates Need a Safety Education is the title found in the commentary section of the September 2016 Journal of Chemical Education. It is written by Robert H. Hill Jr and it explains the lack of safety education in chemistry curriculum.  As I read this, I thought back to my safety education that prepared me for my role as a high school chemistry teacher and felt I was very fortunate to have had an undergradutae class that was specifically designed to teach chemical safety. 

Significant Digits, Pool Tolerances, and Ties in Swimming

nascar & swimming

              With the Olympics just finishing up, I was excited to see the following link posted on twitter entitled: Significant Digits and Pool Tolerances are Why There are So Many Ties in Swimming. You see in my attempt to connect chemistry content to a real world application, I had used a scenario in an old YouTube vi

Representing Molecules

magnetic ping pong model kits

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.

The Poisoner’s Handbook

American Experience: Poisoner's Handbook

In the June 6th, 2016 Chemical and Engineering News magazine put out by the American Chemical Society, C&EN talks with Deborah Blum, journalist and author: From the article’s description, ‘The Poisoner’s Handbook’ writer talks about the beauty of chemistry and why she wants people to know more about it.

PASCO Wireless Temperature Sensor, update on Classkick and with exams coming soon try High School Chemistry: Practice Tests and Flashcards by Varsity Tutors

This past week, as part of our Thermochemistry unit, my students were completing one of my favorite Target Inquiry Labs entitled “ A Very Cool Investigation”.  We were using calorimeters, dissolving ammonium nitrate, and my students were recording the change in temperature using a digital thermometer.  Some of my students had