Stem+and+Leaf

**Some sties to help make "__variability__" and "__z-scores__" more interactive....**
[] This site is java-based. Enter info and see area under curve. Scroll down to second normal curve to get z-score calculator.

[] Don't know how you're planning on introducing z-scores (or how in-depth you intend to go), but this site has a really "to-the-point" youtube video (3:03 in length) describing and giving a practical (yet surprising) example of a z-score. There are two other videos also on this page if you intend to go more in-depth.

For a slightly more interactive and "higher-order-thinking skills" approach with your students you could have them view the video and then pair up and create a similar example ... if you can go "high tech" and take your iPad, you could even have them record their examples using the "Screen Chomp" or "Show Me" app for all to see. :-)

[] This is a PDF which outlines a collection of hands-on activities and demonstrations for teaching stats and research methods. The two activities entitled, "The Alphabet Game" and "Are you Ready for Some Football?" are the best for this week's lesson you're teaching.

**Some sites to help make "__stem and leaf__" lessons more interactive ....**
[] You enter the data (can copy and paste or enter directly), and the stem and leaf is created for you.

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