It’s almost time.  AP scores come out very soon.  For some of us, it feels like Christmas slowly approaching.  For others of us, it feels...

If you have taught as long as I have, you have lived through at least two really annoying disposable water bottle fads.  Bottle...

I was late to the party.  Like really late.  I just did the blue glitter intermolecular force demo for the first time.  I know, it’s the...

It's crunch time for AP chemistry. Many of us are teaching unit 9 right now. Here is a visual reminder for them which electrode is the...

I have to admit something.  I don’t like using puzzle pieces for molecular compounds.  There I said it.  It’s cute for methane and...

I can remember it like it was yesterday.  I was in fourth grade competing in a Quiz Bowl with my other science nerd friends.  The...

While the applications of limiting reagent calculations might feel obvious to you and I, they aren’t to the students.  Often, the...

There are a million different versions of the stoichiometry Alka Seltzer lab out there.  And maybe I’m just a contrarian, but I have...

There is an answer in chemistry to almost every “why” question.  To become more stable. Why does nitrogen make a diatomic element?  To...

The rate determining step in kinetics can be made visual.  I show this same grainy video every year to help students just starting...

This is the year for trying things in a new order.  Some of them have worked to remove some common errors.  I always used to teach...

I’m doing an experiment.  With my students.  I introduced the concept of limiting reagent before they even know how to balance...

I feel like I’m at an addiction meeting. My name is Brennan Koch, and I don’t use the swap and drop method to write formulas for ionic...

London Dispersion Forces (LDF) can be a little tricky to understand, especially for first year chemistry students.  I started using this...

Predicting the outcomes of chemical reactions is not only key to chemistry, but also a skill that some kids view as impossible.  How are...

Christmas break is almost over.  This inevitable day has been breathing down your neck for a while now.  And now, your mind has to shift...

Scan teacher social media and you will see all sorts of gifts that teachers give to their students.  Silver plated ornaments, copper...

Can you picture the giant stack of lab reports that you still haven’t graded?  Maybe they have a digital notebook and you haven’t clicked...

Sometimes simple wins. This is one of those times. Try using marshmallows to introduce VSEPR theory and have the kids use inquiry to...

Buffers can be challenging. Over the years, I have found that kids tend to get stuck in understanding buffers more than they should. This...