The present work intends to teach 3rd high school students the content of
the magnetic field and an Investigative Teaching Sequence (SEI) using a software
and hardware system that is capable of measuring the intensity of this field in an
experimental way, using a sensor of Hall effect in conjunction with Arduino. The
proposal brings an investigative sequence based on an experimental problem, in
which students assume an investigative posture, having the possibility of building
their own knowledge, based on a didactic sequence relating the magnetic field with
other physical quantities, such as current and voltage. electrical. This work aims
to familiarize students with Physics and stimulate the relationship between theory,
technology, practices and applications of the content addressed. The results suggest
that there have been advances in the knowledge of Physics and in the development
of the mathematical part of calculations and graphs. Therefore, it can be said that
there was learning and that the methodology used was efficient.
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