Author Archives: astroteacher

Looking Behind Abstractions

Very large and very small numbers are abstractions.  Frequently they are useful in illuminating some natural phenomena, however many people have a difficult time comprehending such numbers.  We don’t usually deal with these sorts of numbers in our everyday lives.  … Continue reading

Posted in Environmental Issues | 1 Comment

Perspective

Cultural perspective governs our approach to nature As a tool for artists, perspective made its appearance consistently sometime in the early 1400s.  It was not long before both linear and aerial perspective were utilized, giving depth and dimension to the … Continue reading

Posted in Uncategorized | 1 Comment

Mask.

The COVID-19 pandemic has changed most everyone’s behavior. Particularly when it comes to personal protection. Unfortunately, people are generally inconsistent in their practice of safe behavior to limit the spread of the coronavirus. On my regular walks around San Francisco, … Continue reading

Posted in Uncategorized | 1 Comment

Chasing Shadows and Eating the Moon

Several years ago, a speaker told the audience at a conference I was attending how elementary teachers have very few opportunities for professional development in the area of science, and take advantage of fewer.  The amount of professional development in … Continue reading

Posted in Science Education, Uncategorized | 5 Comments