This document discusses synergy in teaching and learning and its relationship to educational technology and learning theories. Synergy refers to the combined effect of multiple factors being greater than their individual effects. In teaching, synergy involves the concerted impact of methods, strategies, principles, and appropriate technologies and materials tailored to the content. A comprehensive understanding of how education and technology complement each other is important for convincing teachers and students to use technology as a tool for teaching and learning. Constructivist learning theory, which holds that students build their own understandings from experiences, finds relevance in the use of educational technology.