Using the palm (and palm OS) in Mathematics
Education © James P. Dildine, 2001
The data below are Ages Vs. Systolic Blood
Pressures for 10 Women
Using Tools Found on the palm III We can analyze
this data for several trends.
Age 
Blood Pressure 
Age 
Blood Pressure 
34 
120 
55 
140 
38 
114 
57 
152 
44 
140 
60 
157 
44 
136 
63 
149 
49 
147 
72 
162 
Quicksheet  Spreadsheet for the palm, very similar to Excel. You can enter data; find averages, sort, and graph the data.


palm Stats  Enter the data and Calculate Descriptive Statistics.


Lin Reg  Plot (x,y) data as (age, years) and determine linear regression model to describe data.


So the story about our data from these three stats programs analyses:
It seems that as a woman ages her systolic blood pressure rises as evident by the comparison line graphs on quicksheet and the linear "trend line" thru the belt of data from the Linear Regression Program. The average age of women surveyed was 51.6 with a standard deviation of 11.9 and the average Systolic BP was 141.7 with an SD of 15.3.
Easy Calc  Graph several expressions and compare them. The Graphs of three functions are shown in the table and palm below. What is the relationship between the three graphs over the interval 1 to 2 ?
Y = 2 * X 

Y = X ^ 2 

Y = 2 ^ X 
Polyhedra  Rotating palms with polyhedra.



Imagiprobe and the Palm Handhelds:
New deveopments in Third Party Palm Software and Hardware have made it possible for the palm to act as a data collection tool, much like the CBL/Logger Pro for TI calculators and personal computers. The probes are exactly the same and made by vernier. The harware interface is much smaller and the software interface is much more powerful for such a small device. The current probes are the voltage, temp, and light sensors. I have included a java activity meant to simulate the interaction with the light probe. Students can explore the inverse square law of light intensity. It is in progress so be patient with the limitations. Please. Imagiworks has said that they are working on a motion sensor, and various biology probes (heart rate, respiration, etc...) which will enhance the above exploration of data in that the palm will act as data collector and analyzer.
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