The aim of the research was to evaluate the effect of K-W-D-L problem-solving model on self-efficacy, anxiety
and math function of students. The statistical population of this research was junior high school students in
Tehran. ,Three high schools were selected from Tehran's area based on cluster sampling method, according to the
existing facilities, and same major classes of each school were randomly selected among the selected schools.
The sample size was 145 people. This research has been done on both test and control groups and also evaluated
before and after model implementation. To evaluate the math self-efficacy and anxiety, MATHEMATICS SELF EFFICACY
AND ANXIETY QUESTIONNAIRE, was used. To assess the math function of students, the first
and second semester grades of the students were considered in the experiment. After data analysis, it was found
that the KWDL problem-solving model leads to improve the math function and self-efficacy.
The aim of the research was to evaluate the effect of K-W-D-L problem-solving model on self-efficacy, anxietyand math function of students. The statistical population of this research was junior high school students inTehran. ,Three high schools were selected from Tehran's area based on cluster sampling method, according to theexisting facilities, and same major classes of each school were randomly selected among the selected schools.The sample size was 145 people. This research has been done on both test and control groups and also evaluatedbefore and after model implementation. To evaluate the math self-efficacy and anxiety, MATHEMATICS SELF EFFICACYAND ANXIETY QUESTIONNAIRE, was used. To assess the math function of students, the firstand second semester grades of the students were considered in the experiment. After data analysis, it was foundthat the KWDL problem-solving model leads to improve the math function and self-efficacy.
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