National Conference for Advanced POGIL Practitioners

I love Chemistry bumper sticker

POGIL stands for "Process Oriented Guided Inquiry Learning". Over the years I have accidentally and somewhat intentionally been using POGIL activities. Students must work in teams, examine models and answer questions that become more complex based on the models and students hopefully build knowledge. I have had my ups and downs. It has been messy. Bottom is what almost always happens...I eavesdrop on students talking like scientists. It is student centered and the comments would never come from students if I sat back and lectured. Somehow, I wound up at this conference for "advanced" POGIL practitioners. I am trying to keep it a secret that I have never really been advanced at anything and am hoping that by the time anyone figures this out the conference will be over.

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. 

Using the ACS Exams in Your Classroom

ACS Division of Chemical Education Examinations Institute Logo

Say the words standardized test to most educators and you will likely notice a minor gag reflex. While I completely sympathize with this reaction given the frequently labeled testing culture that’s been far too often forced upon us within the past 15 years, I think it is appropriate to take a step back and recognize the meaningful role a standardized test can have on our curriculum and instruction. After a recent experience using an exam from the ACS Division of Chemical Education Examinations Institute1, I was able to recognize that meaningful role. So, the purpose of this article is to provide useful information for anyone interested in the exam implementation process.

Reduction of Permanganate Ion by Acids in Rhubarb, Apples, and Candy


If rhubarb stem is placed in a solution of permanganate, the purple permanganate ion is reduced to the colorless Mn2+ ion. It is thought that the oxalic acid present in rhubarb causes this reduction. The investigations presented in this post provide evidence that this may not be the whole story...

Qualitative Analysis of IONS

supplies for ion qualitative analysis lab

Near the end of the school year we are all thinking about what we will do with our AP Chem students until the end of the semester. Last year I wrote about a post AP independent study activity that I use dealing with transition metal compounds. I still like it and use it. But this year I want to talk about a very involved lab that many of my colleagues are ignoring.

Who inspires you?

heating of copper II sulfate

This blog post may be a bit non-traditional, but in this submission I recall a memory from early in my teaching career when my dad (who was an environmental chemist) visited my classroom. The day remains embedded in my memory bank, and had a profound impact on how I view labs - as an opportunity to extend the learning.

Titrations and Microscale Chemistry

Microscale titrations in a well-plate

I tend to enjoy acid base titrations for several reasons.  First, students get to work with burettes, acids, bases and they see a nice "color change" when they reach an endpoint. Many times, students who tend to struggle with pen and paper testing excel at the "hands-on" approach. Titrations also dovetail well with stoichiometry which provides a nice review of information closer to the end of the year.