Abstract in English

References used

Garabedian, Charles,JR. The effects of proof on Achievement and reasoning Ability of student in geometry, 1992.65
Eisenberg, T.& Mcginty, Comparing error patterns and the effect of maturation in a unit on sentential Logic. Journal for research in mathematics education.5,255- 237..1974.87- 98
Mgnussn: lois And Ltono: Goanne The Impact of the use of Thierry - Based Learning as Teaching methodology on The development of Critical thinking. http:\\wilsontxt. Hwwilson. Comlpdfml. 2000.12-53

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