The purposes of this study were: (1) to investigate teaching methods, learning strategies and their interaction (2) to understand the impact of distance education to elementary school education. The subjects were forty-three six grade students, divided into sixteen groups for cooperative learning. During a three-week distance education experimental teaching period, all groups accepted the online courseware of earth science. The data was collected through interview, e-mail questionnaire and tracking record. The results of this study were as follows: 1.Teaching methods include: teaching students how to operate computers, explaining the goals of distance learning, using e-mail to communicate with students, giving positive reinforcement 2.Learning strategies include: note taking, reading computer screen content, team discussions, oral questions, sending e-mail. There were three types of learning pattern: skimming, jumping and systematic. 3.Due to lack of instructor in distance education and other reasons, the frequency of learner and instructor interaction was low and most of learner-content interaction was one-way. 4.The role of instructor in distance education proved to be important. Well- designed content and all forms of interaction were substantial. 5.Although instructor and learners agreed that distance education has some advantages which traditional education didn't have, it still has some problems which need to be solved.