The determination for the modal age level for grades seven and eight for the difficulty of the principle: molecular motion varies with temperature.
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Abstract
The problem of this investigation was to establish three
a test re-test technique a learning index of the scientific
principle, "Molecular Motion Varies with Temperature". This
learning index will indicate the approximate mental age level
at which this princfiple can be taught effectively to children
of similar ability and background. A review of the literature
established that the teaching of principles is an effective
method for teaching science.
After selecting the principle seven demonstrations were
devised to illustrate the principle as completely as possible.
In devising the demonstrations the author tried to make them
simple, infallible, and dynamic. The time allotted for this
material was approximately 15 minutes. [TRUNCATED]
Description
Thesis (M.A.)--Boston University
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Based on investigation of the BU Libraries' staff, this work is free of known copyright restrictions.