أثر التجارب العملية(جهاز فحص التوصيلية الحرارية) في تحصيل طلبةالمرحلة الأولى في قسم الفيزياء في مادة الحرارة

Abstract

The research aims to studying theaffectivity of the examining apparatus of thethermal connectivity in the achievement ofthe 1st year students in Physics department.The researcher used a sample consisting of 50 students equally divided into two groups:the experimental and the controlling, eachhas 25 students. The equivalence betweenthese two groups has conducted by usingRafin test for each intelligence and the pretestof achievement . As away of training theexperimental group , a developed lecturingmethod is used.The researcher has found out that theexperimental group has excelled thecontrolling one in getting marks.The mean of the experimental groupmarks is (71.92) where as of the controllingone is (65.76).The T- test is (20 and 21) in evidencemean (0.05) and freedom degree (48) whichis a statistical function. The value of thetabulated T-test is (2.30).In the light of these results, theresearcher has found out that there is adifference at the level 0.05 and freedomdegree (48) for the experimental group. Thestudy of the students for the practicalcurriculum, the manufacturing theexamined material and the way ofmanufacturing this apparatus locally havegreat effect on their performances.