This is a TI-84 activity that uses Normal Curves and Climate Change data. It can easily be done with other technologies. A special thank you to Jerry Moreno of John Carroll University for his assistance in understanding and interpreting this data.

You can get the student sheet here: Climate Change and Normal Curves Student and the teacher notes and solutions here: Climate Change and Normal Curves Teacher. You can get the pdf of the 4 normal curves here: Climate Change and Normal Curves 4 Curves.   Or you can get all 3 files in a zip folder: Climate Change and Normal Curves ALL Files .
Here is the student pdf:

s01

s02

s03

Here is the teacher pdf:

t01

t02

t03

t04