In Lesson 1, you learned that the C chord contains three notes C, E and G and you learned how to play the C chord with the C as the lowest note of the chord. Sometimes it is easier to play the C chord with G as the lowest note. To play the C chord in this way, use the first, second and fifth fingers of your left hand, as shown in the diagram.
When C is the lowest note of the C chord, the chord is said to be in root position. When E is the lowest note, the chord is said to be in its first inversion. The new C chord fingering shown in the diagram, with G as the lowest note, is called the second inversion of the C chord.