Many upper-school science teachers are aware that last year (2019) a substantial revision to the SI unit system, commonly known in the US as the metric system, went into effect. If you are not aware that the SI system underwent a significant revision, you should be. The revision completely changed the definitions of four of the seven SI base units …
Biology. Chemistry. Physics. It is by far the most common sequence of science courses in high schools and has been the default program in American high school education for several decades. But the B-C-P sequence has been the subject of criticism from many educators and scientists for over a century. In our time when science scores and aptitude are in …