A Measured Look at Schoolroom Chalk Dust

At long last, after millions of students in thousands of classrooms have freely and incautiously breathed trillions of breaths, there’s a report about the question: How much chalk dust enters the air when a teacher uses a blackboard? The study, Assessment of Airborne Fine Particulate Matter and Particle Size Distribution in Settled Chalk Dust During Writing and Dusting […]

Powerpoint-Induced Salivation in Class

Powerpoint enthusiasts who have not yet developed their own techniques for inducing salivation in classrooms now have a published study that can show them the basics: “Using Powerpoint to Demonstrate Human Classical Salivary Conditioning in a Classroom Situation,” Charles Abramson [pictured here], Erika Brown, Dillon Langley, Psychological Reports, Volume 108, Issue 1, February 2011, pp. […]