When a single word in the CED might just matter

When a single word in the CED might just matter

I talk about the importance of referencing the CED all the time. What that actually means is the importance of understanding and interpreting the TOPIC LOs and their associated Essential Knowledge statements. The rest of the the CED (skills, CB propaganda, educational...
Fever Trees and Quinine

Fever Trees
and Quinine

I love writing about chemistry, more than anything I’ve ever done professionally. In part that’s because I learn stupid stuff, an example of which occurred again yesterday. I was writing a larger piece about quinones and related compounds and I got to thinking about...
Site Update

Site Update

The AP Free-Response Summary document has been updated for all legacy exams from 1990 to 2013, including all released B forms. Get it here.

2013 AP Chemistry Exam Comments

The 2013 AP Chemistry Exam Free Response analysis Comments Lots of my students said that they thought that the exam looked (or felt), different, and that questions were somehow ‘unusual’. I completely disagree and am a little concerned! Sure, on balance...