In this lesson, June Han teaches two exercises for strengthening scales. (To enjoy this video, you'll need to know how to play an eight-note scale with cross-under.)
June Han teaches how to place 8-note arpeggios using Etude #20 from "Studi di Media Difficultá," by Ettore Pozzoli.
In this lesson June Han teaches three exercises for position and strengthening. The concepts in this video are best approached with a stable hand position and ability to play fingers independently.