This article is to present some critical reflections on e-learning design in field of elementary school curriculum based on insights gained from a series of design actions, experiences and modifications. A conceptual framework- "Domain-Learner-Performance" is proposed for integration of technology and curriculum design in the elementary school level. It is suggested that the design process of e-learning is a transformation process which reflects different perspectives of educational paradigms and teacher's decisions, rather than merely deliver some types of multimedia products or electronic form of learning materials. The article begins with an examination on the nature of curriculum design and the role of technology. Then, an E-PBL (Electronic Problem-based Learning) model is suggested for technology integration with the subject of social studies based on the context of elementary school. This model could be regarded as an exploratory design framework for further test and discussion.