Building on rich training literature, we examined which skills constituting the control-of-variables strategy (CVS) benefit from a comprehensive training, and which develop similarly during content-focused inquiry at ages 10-12. In addition, we examined whether prior knowledge, reasoning abilities, and reading comprehension explain variation in…

From the beginning of the school year, the author observed an interesting phenomenon in Ms. James' 3rd grade class: Students would eagerly volunteer to share their ideas by raising their hands or calling out to the teacher, but when they began to share, they would quickly abandon their talk and announce, "I forgot." As the author heard…

The purpose of this study is to investigate the effects of a ubiquitous problem-based learning system (UPBLS) on students' question-raising performance in field inquiry activities. An experiment was conducted on an elementary school natural science course. A total of 43 sixth and fifth grade elementary students divided into experienced and…