With the adoption of NGSS, I’ve had to make cuts to some of the lessons that biology classes of the past enjoyed. I was sad to see it go, but we no longer do a unit on the Kingdom Protista, but I still manage to fit a microscope lab into other sections.
Activity illustrates the competitive exclusion principle by showing students how each population behaves when grown alone or when mixed together.
The unit on protists is one that I used to dread, mainly because the world of microscopic organisms does not ever seem particularly interesting to students, where only a small percentage of them seem to care about the Ameba and Paramecium. Furthermore, studying protozoa seems to be disconnected from real world applications. Laboratory investigations can…