David Gallo shows jaw-dropping footage of amazing sea creatures, including a color-shifting cuttlefish, a perfectly camouflaged octopus, and a Times Square's worth of neon light displays from fish who live in the blackest depths of the ocean. This short talk celebrates the pioneering work of ocean explorers like Edith Widder and Roger Hanlon. Here is the link for it.
Here are some links we are going to use for Solving Quadratics.
The first few are from the site IXL. Work on each link until you are ready to move on. Pay attention to the method asked so that you are fluent in all of the methods.