“…Leaning science Doing science discover and solve problems, and improving the ability to learn (Gallagher, Stepien, & Rosenthal, 1992;Stepien & Gallagher, 1993;Van Tassel-Baska, Bass, Ries, Poland, & Avery, 1998). Furthermore, such researches indicate that the harmony of content and process, unique research-based learning, development of scientific concepts, and interdisciplinary approach among diverse subject areas can be accomplished naturally through problem-based learning.…”