Thus, the teaching and learning of science depends on the level
of students’ language-mastering in terms of all its aspects and
components: in terms of communication effectiveness, which
is based on the understanding of the literal meaning of what is
explained by the teacher or by sources like textbooks or other
materials; in terms of the gradual acquisition of knowledge
inherent in the learning process and implying reflecting on the
content up to the point of coming to mentally “own” it (as
implicit in the etymological meaning of acquisition); in terms
of the development of the ability to build independent ways of
thinking on the basis of the acquired knowledge, which is the
key to innovation.