---

The purpose of this research is the effect of Schwab’s invitation to inquiry method and flipping problem solving on the academic function on Biology course of students of tenth grade with modifying critical thinking.This research’s method is semi – experimental with pre – test and post – test and control group.  Its statistical community includes female students of tenth grade of Tabriz city at the academic years of 2015-2016.Sample size consists of 69students of tenth grade were chosen by multistage cluster sampling methodGathering information tools include Ricketts critical thinking questionnaire and teacher made academic achievement test on Biology course.Data were analyze by covariance analysis method..The results indicated, critical thinking could be able act as a mediator in the effect of Schwab’s invitation to inquiry method on achievement of students werethought by Schwab’s invitation to inquiry method. In the other way it couldn’t act as a mediator in flipping problem solving

---

The purpose of this study was to design a virtual reality curriculum model in science course based on a synthesis method. The statistical population of this study consisted of all valid scientific articles in the field of virtual reality that based on regular search of databases, 920 scientific articles were identified according to the inclusion criteria and finally 197 exclusion criteria were selected for final analysis. Were. A researcher-designed worksheet form was used to collect, report and record the initial research data. Findings were analyzed using Marshchr('39')s (1991) seven-step model of open synthesis and axial coding methods. Research findings show that the Virtual Reality-Based Curriculum in Science is a student-centered curriculum that creates different roles and responsibilities for the learner, teacher, and knowledge.