hi
As I understand it...............
Play each chord, without looking, hands together as follows.......
Eg:
C major (ROOT POSITION) = C E G C with fingers (RH) 1 2 3 5 together with the same notes in the LH.
Eg:
C major (ROOT POSITION) = C E G C with fingers 5 4 2 1.
Proceed up and back down the keyboard, feeling your way, using the black keys as a guide. Say the name of each chord as you play.
Next try
C major FIRST INVERSION Eg:
RH E G C E with fingers 1 2 3 5 together with
LH E G C E using fingers 5 4 2 1.
etc..
I hope this helps