Computer technologies have been introduced with anticipation for improved practices and purpose-driven learning outcomes. However, the outcomes often lead to a need to re-examine issues pertaining to the affordances of technology, teacher competencies, student learning, scalability and sustainability of technology in education. Building on prior experiences gained from using asynchronous CMC tools and a generic model for designing learning environment, Infodata, a prototype of an asynchronous CMC tool for project-based teaching and learning was developed. A case study was conducted on two teachers and eight students (aged 15) who explored the characteristics, knowledge construction and scaffolding thinking of the technology in an activity.