This study proposes a developmental model and practical guidelines for integrating technology into classroom instruction for teachers of grades 1-12. After investigating 91 experienced teachers, the researchers have identified 16 factors affecting the effectiveness of technology-integrated instruction plans, and this led to the construction of a new developmental model. Based on a systematic approach (Analysis-Design- Development-Implementation-Evaluation), they have also constructed a set of guidelines in the form of a checklist to better enable both novice and experienced teachers to integrate technology into their program of instruction. Finally, they have provided suggestions for evaluating technology-integrated instruction and for further research.