This book offers scale patterns and modes for the baritone uke.  

 

Each scale is shown in multiple fingerings with its root on the fourth, third or second string. Examples include Major, Minor, Harmonic Minor,  and Pentatonic scales plus Dorian, Phrygian, and Mixolydian modes. Each model scale is shown in standard notation, tablature and various fretboard diagrams. In the diagrams, all of the scales are shown in first position, that is, with the first finger aligned with the first fret. The author relies on the reader to correlate the diamond shapes with the appropriate tonic note, no matter what scale is being played.

 

Practicing scales will accelerate your learning, improve your coordination and musical ear, and help you become a better sight reader on virtually any instrument, in this case- the baritone uke!