by Pete A’Hearn
“How come if people evolved from monkeys, monkeys aren’t turning into people now?”
I’m going to bet that any science teacher who has taught evolution has run into this question at some point. There are a bunch of incorrect assumptions behind the question, including the idea that evolution is a process that we could observe occurring during our lifetimes. This idea is directly addressed as part of the NGSS Crosscutting Concept of Scale, Proportion, and Quantity with the idea that:
- Phenomena that can be observed at one scale may not be observable at another scale.
- Time, space, and energy phenomena can be observed at various scales using models to study systems that are too large or too small.
(Note that this is not the crosscutting concept called out in the middle school evolution topic. Teachers will need to used multiple crosscutting concepts as well as multiple practices in building coherent units – not just the ones highlighted in the standards). (more…)