This chapter aimed to reveal how the analysis, design, and development processes should be carried out while history teaching environments are being developed in 3D virtual environments and to set a concrete definition of teaching process in 3D virtual environments. In the history teaching session, the participants were represented in the 3D virtual environment developed in OpenSim simultaneously with their own avatars. They role-played the historical characters and actively participated in the events of that period by using historical reenactment technique in historical spaces. Additionally, this chapter describes the development process of a 3D virtual teaching environment from the design of the teaching process to the implementation. The procedures performed during the preparation of the 3D virtual teaching environment are presented with a flowchart. It is expected that this flowchart, suggested as a 3D virtual instructional design model, will guide researchers through the process of developing teaching implementations in 3D virtual environments in future studies.