Open Day is a fun six-level topic-based series for elementary schools in which students learn to communicate confidently in English. A wide range of activities acquaints them with internationally accepted exams while providing practice in all four skills.

　　At each level, students are accompanied by children called the Good Buddies, who appear in stories with animals that are or have been endangered. These characters inspire students to become balanced human beings who care about the world they live in.

　　It is in this way that the series develops empathy and tolerance. It successfully engages students through active learning and by encouraging them to analyze how they work as individuals and interact with others.