Dissertação
Meiose e genética mendeliana: proposta de uma sequência didática participativa e investigativa
Fecha
2019-07-30Autor
Jeovanio José da Rocha
Institución
Resumen
Knowledge in genetics is essential so students can understand other fields of modern biology,
and also to become critical citizens able to understand the advances that interfere with life in
society, such as medical and agricultural issues, for example. Meiosis is considered a difficult
subject to understand by high school students which may hinder construction of knowledge
related to basic genetics. In addition, this topic is fundamental for students to understand various
topics such as gametogenesis, reproduction, evolution and among others. Thus, this study aimed
at contributing to the teaching and learning of genetics, through the development, application
and evaluation of an investigative didactic sequence that addressed meiosis related to
Mendelian genetics. The target audience of this study was students from the 3rd year of a state
school in Brumadinho, MG. The proposed sequence is developed in nine classes and low cost
and easily accessible materials are used. Various activities were planned around a previously
published practice entitled Meiosis on Paper, which has the handling of paper-cut chromosomes
as the main link for learning meiosis and Mendelian genetics. The introduction to the theme
was guided by the formation of gametes and fertilization. It was not noticed that students had a
great commitment and willingness to participate in the classes. The analysis of the initial and
final questionnaires indicated that more students gave correct answers on the subjects related
to meiosis and the principles of Mendelian genetics. With this work it was possible to create an
innovative didactic sequence that allowed students to have a better interaction, participation
and group work, allowing them to be protagonists in the construction of their knowledge. The
product of this work was, thus, the creation of a manual for the teacher about the didactic
sequence which also includes detailed guidelines for the student.
Keywords: genetics teaching; meiosis; didactic sequence.