The Major and Minor Scales both have 7 note or scale degrees. The Pentatonic Scales (Major & Minor) have only 5 notes. This accounts for its characteristic sound as well as it’s name; (Penta meaning 5; Tonic meaning notes)
The Pentatonic scale with it’s 5 note construction, can have each note begin a pattern. Each pattern, starts with a different scale note, but all have the same 5 notes.
The 5 notes of the Minor Pentatonic Scale are; 1 (root), b3rd, 4th, 5th, and b7th.
The notes of the scale are described by how they related to the Major Scale. For instance, the 3rd note of the G Major Scale is “B”, where the Pentatonic scale contains a “Bb. (Or the Flattened, minor 3rd).
Here we have the 5 Patterns of the G Minor Pentatonic Scale.