In this study, an English contest event with across-classroom mode was held in the connected classroom equipping with wireless remote controller (EduClick). The learning scenario of contest event embedded into event-driven learning model is designed by integrating activity-centered design and learner-centered design to conduct students to learn individually before event and collaboratively participate with classmates during the event stage. The contest event is held by the activity-centered design. A web site with web-based content and online testing system is built by learner-centered design. We desire the students to learn for participating in the event. Connected classroom is an environment constructed by connecting classrooms located in the same or different schools, or schools of different countries. More various learning activities could be held in the environment. Here, we built a prototype of connected classroom using the simplest wireless and mobile technologies and held contest event.