2: 'Quadratic Word Problems Collaboration'
https://docs.google.com/presentation/d/1uRml_BK68PYbfkq9V8cNE4SegwnuT_FxFfXk4NjO9TE/edit#slide=id.p
3: 'Mean Absolute Deviation Collaboration'
https://docs.google.com/document/d/1fheXMxe-nESXojK1TQ92UgxVAo44jlRLg5sOIZQ51Dw/edit
4: 'Key Features of Quadratics (Equations)' worksheet
https://docs.google.com/document/d/1cMOmlr6VAlX7jLB1nO6W3agEBvgdENRjSayoOcZLfXI/edit