A More Interesting Calendar

There are trite ways of obtaining the date: looking at a cell phone, watch or conventional calendar. But if one is willing to sacrifice a little precision for something more in tune with the living world, one can simply observe our natural surroundings for often-ignored cues. I know it's about mid-August from seeing the first ripe blackberries in our garden. Plums are purple but still... Continue Reading →

Just What is a Chemical Change?

If a teacher reviews chemical versus physical changes in high school or even in a freshman course, the chances that he'll come across misconceptions regarding the topic are as good as those of seeing autumn colors in Quebec. This is normal because classifying change is a tricky concept given that students barely know the subject. In order to make sense of the... Continue Reading →

WordPress.com.

Up ↑