3+ Quick- Birthday, (grading) scale matters, exposing climate fraud, debunking handbook

These aren't brand new items, as they're things I came across awhile ago and am just getting around to posting now. In addition, I realized that the anniversary of this blog just passed. My first post was published January 12, 2008. As I look back at my first posts, it's clear that I've come a long way (hopefully for the better)- in my location, in my career, and in my thinking. So, in celebration of the 4th anniversary of this blog, let me present you with the following interesting tidbits:

Scale matters (Rick Wormelli)

Thanks to the ActiveGrade blog for bringing this to my attention. I don't know how many times I've had discussions with other teachers on the topic of what constitutes fair and effective grading. Often the most heated topic (where I never made any headway) involved the giving out of zeroes for either missing or poorly done classwork. Rick Wormelli gives a great explanation of why grading scales matter- and specifically why zeroes are no good. It's long for YouTube at 8+ minutes, but it's worth it:

Exposing a climate science fraud (Ethan Siegel)

The post is ostensibly a take down of Judith Curry's claim's that recent studies and reports on the topic of climate change are "hiding the decline1." However, the real appeal of this post (for me) is how it so effectively describes how science and scientists work. He goes through the data, the uncertainties in measurement, and explains how exactly it is that scientists determine that some effect is real and not just a statistical fluke.

The Debunking Handbook (Skeptical Science)

Somewhat related, the Skeptical Science blog (one of the best places to find science-based information about climate science) released The Debunking Handbook a while ago and just recently updated it. The Handbook provides guidelines for communicating about misinformation and gives tips to avoid falling into common pitfalls. In their own words, "The Handbook explores the surprising fact that debunking myths can sometimes reinforce the myth in peoples' minds. Communicators need to be aware of the various backfire effects and how to avoid them..." The handbook is a free PDF download available at their website.


  1. "Hiding the decline" is the (totally false) idea that climate scientists are tweaking their graphs to make it seem like the Earth is getting warmer, when it really has been cooling the last decade (which it hasn't). Read the full article for more details. (back)