Authors :
Rita Raya; Agung Lukito; St. Suwarsono
Volume/Issue :
Volume 5 - 2020, Issue 8 - August
Google Scholar :
http://bitly.ws/9nMw
Scribd :
https://bit.ly/35yiQIa
Abstract :
Students' strategies in solving probability
problems are still rarely studied in depth although this
ability is needed by students in solving problems that
contain an uncertainty element. The purpose of this
study was to describe the strategies that were used by
high school students in solving probability problems.
Subject in this study was a male student of grade 11
science who had studied probability material and had
low math ability in which the determination of student’s
category was based on the score of math ability test. The
research data were obtained through in-depth
interviews and problem solving tasks. The data
credibility test used time triangulation with data
convergence to the same meaning. The results showed
that in solving the probability problem, the strategy
used by the student was calculating the number of the
sample space members during the drawing of 2 coins to
6 coins. Subject calculated the number of sample space
members in the child birth order event by relating them
to the 6 coin draw event, then he used the classic
definition of calculating the odds of each event to be
compared so that he could decide the correct answer. A
person's ability to the aspect of probability thinking
strategies in solving probability problems varies
depending on the ability in understanding the
information and knowledge owned by each person in
facing the probability situations.
Keywords :
Strategy, probabilistic thinking, mathematical skills, solving probability problems
Students' strategies in solving probability
problems are still rarely studied in depth although this
ability is needed by students in solving problems that
contain an uncertainty element. The purpose of this
study was to describe the strategies that were used by
high school students in solving probability problems.
Subject in this study was a male student of grade 11
science who had studied probability material and had
low math ability in which the determination of student’s
category was based on the score of math ability test. The
research data were obtained through in-depth
interviews and problem solving tasks. The data
credibility test used time triangulation with data
convergence to the same meaning. The results showed
that in solving the probability problem, the strategy
used by the student was calculating the number of the
sample space members during the drawing of 2 coins to
6 coins. Subject calculated the number of sample space
members in the child birth order event by relating them
to the 6 coin draw event, then he used the classic
definition of calculating the odds of each event to be
compared so that he could decide the correct answer. A
person's ability to the aspect of probability thinking
strategies in solving probability problems varies
depending on the ability in understanding the
information and knowledge owned by each person in
facing the probability situations.
Keywords :
Strategy, probabilistic thinking, mathematical skills, solving probability problems
