add joy's histogram ideas to box plots

[flannery-denny]

3rd section is saved for boxplot lesson - where they will rotate and draw boxplot on the 3rd shape to match that scenario and histogram. If teacher does not plan to do boxplots, they can rotate and have students write another scenario on the 3rd shape.

I think it forces more critical thinking to rotate before they brainstorm scenarios.

I also like the connection to boxplots.