When performed by the pupils themselves, experiments should come before
the recitation as a part of the preparation for the work of the class
room.
Even in those cases in which the teacher performs the work, opportunity
should be given, from time to time, for the performing of the experiment
by the pupils themselves. This can be done in several ways. During the
course in physics here I am in the habit of leaving apparatus on the
table in my room for at least one day, often for a longer time, and of
giving permission to my class to perform the experiments for themselves
when their time permits and the nature of the experiment makes it an
advantage to get a nearer view than was possible in the class work. I
leave it to them to decide when to perform the experiments, or whether
it is to their advantage to take the time to perform them at all. I make
no attempt to watch either pupils or apparatus, although I would
often assist or explain at intermissions or during the afternoon. The
apparatus was largely used, and the effect on recitations was a good
one. For advanced pupils, and those who can be fully trusted, the plan
is a good one. The only question is the safety of the apparatus; each
teacher can decide for himself regarding the advisability of the plan
for his own school.
With smaller pupils their own safety may render it best to keep
apparatus out of their hands, except under the immediate direction of
the teacher.
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