The properness of concepts, principles, and biological contents of natural science textbooks is essential. The aim of this research was to compare the biology content of natural science textbooks for VIII graders in second semester. The indicators used to determine the properness were the accuracy of Core Competence/CC and Basic Competence/BC,…

Guilds are defined as associations of craftsmen and merchants formed to promote the economic interests of their members as well as to provide protection and mutual aid. As both business and social organizations, guilds were prolific throughout Europe between the eleventh and sixteenth centuries. Guilds were organized so that workers would learn…

In this article, the author describes the experiences middle school students on a field trip to the new Constitution in Action Learning Lab in the Boeing Learning Center at the National Archives can expect. There, middle school students take on the roles of archivists and researchers collecting and analyzing primary sources from the holdings of…