Classroom Action Research (CAR) is a scientific observation of classroom learning practices. As part action research, research intended as input, evaluation, and improvement the quality in classroom. CAR training important relevant for following reasons. First, can improve education through improving process. Second, motivating teachers to produce works from environment daily activities. Third,...

Sunshine hours are the only long term, reliable and available measured information that can be used to reach highly accurate estimates of solar radiation values on the Earth surface. In this paper the sunshine duration is used to estimate monthly average daily solar radiation on a horizontal surface, it can be used to predict solar radiation in different climatic region of Iran. According to th...