Instead of practicing the scale from bottom to top and top to bottom in one direction, if you decide on one pattern and go up and down, your finger movements will become more accurate and uniform.
Practice the scale of thirds as an application and modification of the scale.
Dotted patterns are also a good practice.
There are many other applications of scales.
Practice triplets as well.
You can create various patterns like this by referring to Hanon for piano , etc.
In the "Music Sheet Storage" section of "Basic Practice Before Playing Together," I have shown musics for several patterns of scale practice.
For students, practicing a certain pattern is like a game.
Being able to play more patterns more accurately and quickly means that the difference is clearer to everyone than just the beautiful tone. so if the teacher provides good guidance, students will enjoy practicing independently.