Problems with Pluto

The first year I taught about planets was 2006. As luck would have it, the International Astronomical Union (IAU) did me a big favor in August of that year. On August 24, 2006, the IAU clarified the definition of a planet, and thus changed the status of Pluto from "planet" to "dwarf planet." There was [...]

Learned selfishness

A little background: This year, I essentially threw out all large tests in my classroom. I still utilize small quizzes, but I wasn't feeling the validity of large tests. Instead, I developed what I call "artifacts." Essentially I have the students create something (a book, song, comic, presentation, etc.) that demonstrates their knowledge of the [...]