532
In this way, when the subject comes
into contact with the world of objects and
manipulates them, what he perceives is not
mere objects, but semiotic objects, that is,
things that have names, physical or
imaginary entities. Along with the visual
image of the object, the subject captures
the word that gives it meaning, even
though word and object seem to be
confused. In other words, the subject in the
process of literacy in the EJA is not
enough to draw the numeral 20, sometimes
related to the social use of money; more
importantly, the learner knows what 20 has
to do with 19 or 21, or what he can buy
with that grade, which is not always
considered in school and is meaningful to
him.
In the case of imitation, or in the case
of symbolic play, what makes semiotics
such activities, for Vygotsky (2009a), is
the meaning they have for the other, of the
social group, and not the similarity with
the represented object. This is a
fundamental conclusion, with which one
can define how obsolete are the didactic
procedures that prioritize only the
symbolic representation of numbers or
geometric entities.
Take, for example, the concept of
square, sometimes erroneously diffused in
school as a figure or polygon having four
equal sides. How or what, in this
definition, would a diamond be? Does not
a diamond also have four sides of equal
size? Pedagogically, it would be more
effective to conduct subjects to observe,
manipulate, overlap, and compare different
geometric figures in order to recognize
regularities present in them, so as to
establish that every square is, strictly
speaking, a rhombus, but not every
rhombus is a square. The same problem of
model association that does not actually
deal with conceptual elaboration can be
noted in relation to students'
incomprehension of the distinction
between circle and circle, or between
square and cube, or important conceptual
relations of social use between cm³ and
milliliter or between dm³ and liter, among
other difficulties.
Indeed,
The learning of Mathematics refers to
a set of concepts and procedures that
involve methods of investigation and
reasoning, forms of representation
and communication. As a science,
mathematics encompasses a broad
field of relationships, regularities and
coherences, arousing curiosity and
instigating the ability to generalize,
project, predict, and abstract. The
development of these procedures
expands the means to understand the
world around us, both in situations
nearer, present in daily life, and in
those of a more general character. On
the other hand, Mathematics is also
the basis for building knowledge
related to other areas of the
curriculum. It is present in the Exact
Sciences, in the Natural and Social
Sciences, in the varied forms of
communication and expression.
(Brasil, 2001, p. 99)