abstract this study is an attempt to determine the effect of nano- technology education on science lesson for fifth grade in primary school in the city of kermanshah. this research is experimental and is conducted in the from of pre-test and post- test for the control group. an achievement test was administered to determine the rate of learning in the students. the research is an applied one. ...

The architectural works that remained from the long history of Iran are indeed treasures of Iranian architecture. However, these works are not perfect manifestations of the architecture which had been realized in Iran during centuries. Most of what we have inherited from this architecture are monuments. Such majestic works can hardly lead us to the major part of the architecture, which is popul...