Museum educators often think about what they want children to take away with them from museum visits. But at least as important is what children bring to these visits. Research in developmental psychology shows that children and adolescents progress through a sequence of ways of understanding knowledge and knowing--understanding that lies at the…

Designed to test the effects of knowledge acquisition on attitude formation and change, this study investigated whether knowledge-oriented instruction would have a different effect on students' nuclear attitudes than attitude-oriented instruction. High school students (N=331) from six schools who had not studied nuclear energy in any class or…

Describes an undergraduate psychology class that required the students to either write an essay (counterattitudinal advocacy) or read an essay supporting a scientifically acceptable position contrary to one of their beliefs. Maintains that counterattitudinal advocacy is more effective for overcoming beginning students' erroneous beliefs about…