Videos: Advanced Violin Technique
Below are some good examples of how to teach/learn various kinds of technique on the violin. Many are part of a series, which I encourage you to explore further. By all means, there is not just one single way to teach anything, so experiment and see what works for you! There are also many longer masterclasses (few different pieces & Ravel’s Tzigane) that are available in video format that you should absolutely watch for a more well-rounded musical approach of a specific piece.