The middle fingers
Check the keyboard name and the letters on your own keyboard before starting.
Progress stays on this device.
Type the three exercises using the demonstrated movement, with a separate press for every repeated letter.
Learn d / k, one at a time, before combining them. Press and release each key. Two identical letters mean two separate taps. Let the moving finger return to its home position after each reach in the demonstration.
d dd
D → d
left middle finger: D (home position; no reach)
k kk
K → k
right middle finger: K (home position; no reach)
dk kd
Made a mistake? Press the correct key; there is no need to erase.
A physical keyboard is required for practice.
New characters: dk