High School Biology-Chemistry SMILE Meeting
20 November 2001
Notes Prepared by Porter Johnson

Estellvenia Sanders (Chicago Vocational HS) Digital Numerics
Estellvenia uses these activities with her high school students.

She gave us a sheet with the numbers 1-20 located randomly on it, and we were told to touch as many of the numbers as possible over a given time period (10-20 seconds), timed by a partner using a stopwatch.  We were to touch the numbers in increasing order (1 ... 2 ... 3 ... ) with an index finger. We recorded the total number touched  by each of us over three trials.  Then, we analyzed and compared the data.  By this exercise, some of the students will be able to remember and identify the numbers more quickly.

We then saw how sign language digits (numerically) can be combined with standard American Sign Language [http://www.lessontutor.com/ASLgenhome.html] symbols to speed up sign language, in that some letters have both "letter" and "number" signs in the 1867 version.  In the modern version of sign language, all letters have letter symbols http://www.masterstech-home.com/The_Library/ASL_Dictionary_Project/ASL_Tables/Alphabet.html, and numbers have separate number symbols, http://www.masterstech-home.com/The_Library/ASL_Dictionary_Project/ASL_Tables/Numbers.html, so that no mixing of  numbers and letters occurs.  Very interesting, Estellvenia.

Frana Allen (Skinner School, grades 1-5) The Nose
Everybody's nose may look different from the outside, but all noses have essentially the same function and internal structure.

• Sneezes:  Frana taped a piece of plastic wrap against the board and sprinkled it with water to simulate the fate of the snezate without tissue. The water went down the board in drips.  Then, she put a paper towel [tissue] against the plastic and repeated the experiments.  Water stayed on the tissue and did not "drip".