A Class Experiment

This activity was adapted from one originally written by
Cynthia Lanius, Rice University.

- Using your right hand, see how many times you can write the first letter of your name on a piece of paper in 20 seconds. Your teacher will tell you when to start and stop. Count the number of letters you were able to write.
- Repeat, using your left hand.
- Call out your data for everyone to copy into the table below.

Name of Student | Right Hand | Left Hand | Name of Student | Right Hand | Left Hand |
---|---|---|---|---|---|

- Take a piece of quadrille paper and draw two axes. Label one axis “Right Hand” and the other “Left Hand.”
- On each axis, number the squares to fit the data.
- Plot each point.
- Label the Graph. Use an area of the graph where there are no points. Write an appropriate title.

- What area of the graph represents right handed people?

What area of the graph represents left handed people? - Ambidextrous means that a person can write equally well with either hand. Are there any ambidextrous people in the class?
- Where on the graph would data from ambidextrous people fall. Draw a line to show where this data would be. Label the line “ambidextrous”. What is the slope of this line?
- Are there left handed people in the class? Calculate the percentage of the class that is left-handed? right-handed? Show your work. What is the total percentage for left and right handed students?
- Are you right or left footed? Design an experiment that will evaluate your effectiveness with your right or left foot.