This collaborative project-based learning (CPBL) study concerns the design and development of educational material set by preservice teachers. During the study, Web 2.0 technologies were used as tools to support collaborative knowledge construction in terms of school health and safety. Based on the purpose of the study, mixed method was employed. Qualitative results indicated that CPBL was an appropriate choice for studies aiming to increase awareness and knowledge in a special context. Preparing an educational material set with a wide variety of Web 2.0 tools based on predetermined criteria through CPBL strategy can enable participants to enhance their problem-solving and critical-thinking skills. Moreover, CPBL was effective in increasing the participants' motivation and self-regulation towards technology learning.