This study combined context-aware mechanisms with the main functions of smart phones to develop a motion-sensing and game-based mobile learning system that can provide related information about many plants in the Taipei Botanical Garden. This study developed six types of motions on smart phones involving common botanical misconceptions and integrated these motions into botany-themed learning activities. The purpose was to correct such misconceptions through motion-based learning. This study investigated the influence of whether or not using motion-sensing educational mobile games on learning achievement and learning retention. Experimental results showed that learning achievement in the experimental group (which used motion-sensing mobile learning) and the control group (which did use non-motion-sensing mobile learning) both were improved, moreover, the learning retention of the experimental group significantly exceeded those of the control group.