Basic Unit (1A10.10)
Location : 16-1R
Concept/Purpose: Basic Units
Procedure/Explanation: The demo consists of a small collection of objects
that represent length, time, and mass:
The following is a list of the objects used:
Length: A yard stick, a standard meter stick, ruler, tennis shoe, a plastic pink flamingo, and globe
Mass: A one-pound section of brass pipe and a one-kilogram section of brass
pipe.
Time: An hourglass, a sundial, a pendulum and a globe
These objects are used to discuss the history of units, and also points out that the basic units are
relative to however you want to define them (the tennis shoe as a basic unit of length, for example).