As a discipline, history sometimes gets a bad reputation because many students believe that it is all about memorizing long lists of dates, disputes, and dead people's names. Too often history teachers reinforce this belief by emphasizing historical content over the reasoning skills and disciplinary practices that historians engage in daily and…

The present study investigated the effects of online argumentation scaffolding on students' argumentation involving hypothetical and theoretical biological concepts. Two types of scaffolding were developed in order to improve student argumentation: continuous scaffolding and withdraw scaffolding. A quasi-experimental design was used with four…