Great examples of problems/data sets that can be analyzed. I do think there are a considerable amount of regression equations that may/may not be categorized appropriately. That said, it's a great set of questions to discuss with students, great data sets that can be updated with a little bit of research as most are 10 years old.
One of the best compilations of regression problems that I've come across.
There are new web 2.0 tools appearing every day. Although some of these tools were not originally meant for use in the classroom, they can be extremely effective learning tools for today’s technology geared students and their venturesome teachers.
Answer questions from desktop, iTouch, iPhone, online clicker system
Want to know what your audience/class is thinking right now? How about a quick check for understanding prior to starting the day's lesson? QuickieQ will help you gather a digital show of hands and more, whether the responders are in the same room or across the globe.
NASA generated website with pictures, podcasts, blog posts of current happenings around the world. I explored one example, the recent Tsunami. Great pictures of the island and of showing the wave in the ocean! Also, great story accompanying the pics.
I, also, loved the interactive global map with the geolocated pictures.
Although I haven't listened to the Science for the Hungry World podcast, I subscribe to several NASA podcasts and think they are great for teaching!
Neat tool for teachers. Need a quickly designed number line or graph paper. From NCTM and Illuminations, easy to create different options, easy to download as a jpg and then cut and paste if you want to use in another file.
Good for basic graphics needs that you might not be able to create on your own like nets and spinners.
Always looking for resources that help math teachers think about how to promote learning in the classroom. This synopsis of formative assessment research starts with Wiliam and Black, "Inside the Black Box" from 1998 and progresses forward from there. Some nice specific tasks that are supported by links to examples.