Model construction is an integrated approach aimed at a better understanding and acquisition of scientific/epistemological concepts and skills. To try this approach, a special learning environment was designed and constructed for the 8^th grade science course. A number of experts and science teachers were consulted and related research literature was reviewed. Then a set of 50 female 8^th graders were selected and divided into two groups, one of which participated in the course activities within the designed setting using the provided technologies. Data analyses show that the experimental group learned the concepts much better than the control group, just as they did in regard to the modeling practices.