International Journal of New Trends in Arts, Sports & Science Education , cilt.10, sa.5, ss.297-315, 2021 (Hakemli Dergi)
The aim of the study is to determine which
number systems do the mathematics teachers use to associate the daily life
variables in daily life problems, and if they have associated, to find whether
they used the algebraic features of the number systems they associated. In the
research, the participants' ability to transform between number sets and daily
life variables and their using of the features of the algebraic structure of
these number sets were tried to be investigated in detail. With this purpose,
the case study method, one of the qualitative research patterns, was employed
in the research. The research was carried out with 15 secondary school
mathematics teachers, studying at the Post-graduate Department of the Secondary
School Mathematics Teaching in the 2014-2015, 2015-2016 and 2016-2017 academic
years. For this reason, the study was designed on the use and awareness of
knowledge. As the data collection tools, the mid-term and final exams papers
were applied. The results suggest that the penny and algebraic features of
number systems and the concept of "equation" are not correctly
formed, therefore which number systems are the daily life variables valued in
is not exactly known.