Banca de DEFESA: WANESSA MAYARA SILVA DA ROCHA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : WANESSA MAYARA SILVA DA ROCHA
DATE: 09/03/2023
TIME: 09:00
LOCAL: Plataforma Google Meet - link: https://meet.google.com/egb-tdcd-nsr
TITLE:

ARITHMETIC MEAN FROM THE PERSPECTIVE OF STATISTICAL LITERACY IN FINAL YEARS: teachers' understanding and teaching possibilities

KEY WORDS:

Arithmetic Mean; Statistical Literacy; Mathematics Teacher Education; Elementary School Final Years.

PAGES: 143
BIG AREA: Outra
AREA: Multidisciplinar
SUMMARY:

The concept of arithmetic mean is present in the most varied situations and contexts, such as, for example, in the means of communication to convey diversified news. Reading media news involves analysis and critical evaluations based on knowledge and dispositional elements and requires people to have a certain level of statistical literacy (SL), according to Iddo Gal's theoretical model. This research analyses, in general terms, the understanding of the concept of arithmetic mean by Mathematics teachers in the final years of Elementary School, seeking to identify possibilities for teaching this content in the classroom from the LE perspective. In specific terms, we seek to identify previous knowledge of Mathematics teachers in the final years about situations involving the use of the arithmetic mean; characterize teaching approaches on situations involving the use of the average; and, to analyse with mathematics teachers possibilities of teaching the concept of average in the LE perspective. The methodology, of a qualitative nature, involved carrying out a virtual questionnaire with 14 mathematics teachers from schools located in different municipalities in the state of Pernambuco; and a focus group with four of these teachers, who agreed to continue participating in the research. The questionnaire involved open and closed questions about the profile and background of the participants, and aspects related to understanding the concept of arithmetic mean. Most teachers understood this concept by relating it to the definition of simple average. Many of them do not recognize the properties of the average and have difficulties in interpreting them in statistical graphs. A common mistake was that they recognize the average, highlighting the results that are most repeated, thus confusing it with the concept of mode. They also had difficulties in understanding the concept of moving average. The focus group carried out synchronously in two meetings on Google Meet and asynchronously with the help of WhatsApp, included questioning, theorizing and elaboration of activity in pairs, for teaching the concept of average in the final years. The meetings provided opportunities for participants to reflect and analyse types of errors in solving arithmetic mean problems from the LE perspective. The approaches proposed by the professors were potentially mobilizing critical questioning, enabling articulations of disposition and knowledge elements. The results point to the relevance of teaching arithmetic mean in the final years with an emphasis on Statistical Literacy.

COMMITTEE MEMBERS:
Presidente - 2132360 - LILIANE MARIA TEIXEIRA LIMA DE CARVALHO
Interno - 2891219 - JOSE IVANILDO FELISBERTO DE CARVALHO
Externa à Instituição - IRENE MAURICIO CAZORLA - UESC-BA
Externo à Instituição - ROBSON DA SILVA EUGÊNIO - UPE