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 video I had created

“The Candle Experiment” – an Opening Exercise for General (or introductory) chemistry

candle flame

This exercise is intended as an ice-breaker for a first or second class meeting. It also serves as an introduction to physical & chemical properties and application of the macro/micro/symbolic representations of chemical phenomena. Finally, it also provides a framework to mention many of the topics to be covered in a general chem first semester course.

Solving Mysteries Through Chemistry for National Chemistry Week

Join me, along with co-presenter Rachel Murillo, on Thursday, September 15, 2016, 6:30 p.m. Eastern. Rachel brings her background in forensic anthropology to the webinar, along with her current work teaching high school forensic science. We’ll share forensics resources useful for National Chemistry Week, for integrating into classroom curriculum, and for informal science sharing. Anyone who wants to connect science to this high-interest, real world topic will find ready-to-use demonstrations, lab investigations, videos, background information, and more.

Equilibrium Lab


Just this week I'm reviewing equilibrium with my IB Chemistry seniors after they finished some summer study on the topic. One of our classes was spent manipulating a classic equilibrium involving copper ions and a copper-chloride complex ion.

Time required: 

Approximately 45-60 minutes is usually enough time to complete all six test tubes, and to answer most of the questions and have some discussion about the results.

First Day of Chemistry: The Banning of Caffeine and Gummy Worms

The first day of school for me has always been daunting for my new students (in AP chemistry, where I know the kids, it’s so much easier). I want my students to know the following: -Who is this tiny person who looks like a teenager (that’d be ME, folks)? Where did she come from and why is she teaching us? -What does chemistry look like?

Life, Death and the First Day of School....

 I had a tough week. I had a front row seat in which I witnessed someone almost lose their life. I also almost accidently deleted both of my class websites just days before the kids walk in as we are starting a one to one lap top program. Here is the amazing part to all this...I get something that we all get as teachers every year...a second chance.