This scale exercise is unlike any other. The idea of this one is to practice our scales alternating octaves (i.e. 1st note = lower octave | 2nd note = higher octave | 3rd note = lower octave | 4th note = higher octave and so on)
We don’t have to just do one at a time, we can also try alternating after two notes, three notes and four notes too! The Play Along Playlist that coincides with this lesson goes through one note at a time though.
It’s amazing how much dissonance comes from just switching octaves. Take the idea and run with it!