In this article, see a learning sequence where students explore symbiotic relationships and cell communication in bacteria (quorum sensing) by connecting their prior knowledge regarding ocean ecosystems to their understanding of symbiotic relationships.
Some beetles roll the flesh of dead animals into a ball and cover it in goop — all to feed their future offspring. Now scientists think that goo might do more than just slow decay. It also appears to hide the scent of the decomposing bounty and boosts another odor that repels competitors.
A storyline is a sequence of lessons that has an anchoring phenomenon: something that makes the student notice and wonder and inspires their natural curiosity to ask questions about what may be causing this phenomenon.