A free program for Android, by NHK JAPAN BROADCASTING CORP..

The NHK for School is a video service for schools offered by NHK (Japan Broadcasting Corporation), a public broadcasting organization in Japan. The service is a compilation of educational videos and is intended for use as a supplementary teaching tool for schools.

The videos are designed to be used as a supplement to classroom teaching, and they are compatible with both educational and non-educational grades. They are divided into categories and can be used to complement lectures or to help students better understand and remember information.