리코더온교실 is an Android app developed by 학교예술교육포털. It is a free education and reference app designed for students, teachers, and the educational community. The app focuses on music education, specifically recorder learning.

The app offers various features to assist students in learning the recorder at different levels. It provides comprehensive information about the history, types, playing techniques, and basic theories of recorders. Users can understand the correct posture, breathing techniques, and fingering through step-by-step exercises. The app also includes a collection of 50 songs with accompaniment, allowing users to practice playing along and receive feedback. It even supports recording and video recording for self-evaluation.

리코더온교실 is suitable for students who want to learn the recorder at home for personalized practical learning. It can also be utilized in schools for more advanced learning, such as expressive playing. The app is expected to include instructional guides and videos on the 학교예술교육포털 website in the future.