A Master Thesis entitled”The Effect of an Instructional program Based on problem solving and proof standards in Mathematical Thinking for Seventh Graded Students in Nablus Governorate” (in the Program of Methods of TeachingMathematics)   by”Yahya Kharousheh” will be defended on Thuresday 23^thJul.2020,  under the supervision  of ”Dr.Souhil Salha & Prof. Naji Qatanani” by (10:0 0 ) am in the Korean Institute/B1090