According to co-constructivism theory, learning is a social activity. Students are expected to find many opportunities at Science lessons to construct their collective culture and co-construct their culture since science lessons tend to collaborate. This study aims to develop a scale that measures the co-constructivist environment at 7th and 8th…

The aim of this study was to develop a Likert type attitude scale for high school students with regard to high school physics lessons. The research was carried out with high school students who were studying in Ankara. First, the opinions of 105 high school students about physics lessons were obtained and then 55 scale items were determined from…

Some evidence supports the hypothesis that formal operational reasoning ability (at least that measured by Piagetian tasks) is a unified process. The purpose of this research was to determine: (1) if conservation tasks, such as conservation of number, liquid amount, weight and volume, are unifactor; and (2) if conservation tasks form a scale of…