Teaching Tips from Educational Researchers

  Converting Research to Suggestions Ruth Colvin Clark has spent much of her career in adult learning, reporting about research into which educational strategies work and which don’t. Her book Building Expertise is based on over two hundred research reports, as...

Uncomfortable, Energy-Wasting New Commercial Buildings

Neglectful Design I understand why developers and contractors want to build commercial buildings out of steel. For cost and flexibility of design, it’s hard to beat steal beams, girders, and studs. The design error is to overestimate the R-value you achieve with...

Passive Houses

What is a Passive House? The passive house concept was pioneered in the Northern U.S. and Canada in the late 1970s and early 1980s when it was called “superinsulation”. European builders have improved the superinsulation technology and applied it to both...

New York City: Lost but Really Moving

My Experience as a Trail Blazer My friends laugh when I make the well-worn announcement, “You won’t believe this, but I got lost.” I’m famous for losing my way and leading others with me in the wrong direction. Like the time I guided my sister Sue and three mutual...