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1 total messages Started by Tom Barner Tue, 03 Nov 1992 05:28

#10

Author: Tom Barner
Date: Tue, 03 Nov 1992 05:28

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Brown Bag "Thumb Things are Important" p.2
.
6. Think of at least 3 other tasks that you perform every day. Enter them in
the table and try to perform them.
.
7. Tape your thumbs to the palm of your hands with masking tape. You may need
the help of a friend in order to wrap the tape around your second hand. Be
careful not to tape too tightly and cut off the circulation in your hand!
.
8. Repeat the above tasks with your taped hands. Include the ones that you
thought up in Question 6. Pay attention to any difference in the performance of
the tasks. Enter your observations in the data table as before.
.
9. Which tasks require the least "thumb involvement"?
____________________________________________________________
____________________________________________________________
____________________________________________________________
.
10. Which tasks require the most "thumb involvement"?
____________________________________________________________
____________________________________________________________
____________________________________________________________
.
11. Of the tasks you performed, which required fine motor skills(those
requiring small hand movements)?
____________________________________________________________
____________________________________________________________
____________________________________________________________
..
12. Which required gross motor skills (those involving larger movements using
arm and back muscles.)?
____________________________________________________________
____________________________________________________________
____________________________________________________________
.
13. What conclusion can you draw about the relationship between thumb use and
the type of motor skills involved?
____________________________________________________________
____________________________________________________________
____________________________________________________________
.
14. Many scientists believe that the opposable thumb has helped humans adapt to
their environment and survive. Using your data to help you, explain some of the
ways in which the use of the thumb enables humans to better survive in their
environment. Use the back of this sheet if you need more room.
____________________________________________________________
____________________________________________________________
____________________________________________________________
.
(adapted from "Facts on File" experiment #2.001 by Susan S.
Plati.)
 
 


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