Doug Ragan's blog

Representing Molecules

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

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 .  We were using calorimeters, dissolving ammonium nitrate, and my students were recording the change in temp

App Review - Classkick

As many teachers are preparing to teach online, we are revisiting posts from the ChemEd X archives like this one that might be of help. The author has updated this activity by adding notes specifically to help those teaching remotely. This post about Classkick was originally published April 22, 2016. The platform is now all web based and Doug has compiled a list of public assignments that you are free to modify for your own use.

Not All Periodic Tables are the Same?

Upon sharing my array of apps with some future chemistry teachers, they asked why so many Periodic Tables? My response was “Well not all periodic tables are the same”, upon which was followed by several blank stares...Let me explain: I currently have the following periodic table apps loaded on my iPad...

Building Atoms: One App at a Time

In my high school chemistry class, a unit we cover is that of atomic structure. In particular, given an elements symbol, mass number, atomic number, and charge, the objective would be for the student to determine the atoms number of protons, neutrons, and electrons. I have several apps/program suggestions that can be useful for this purpose.