The letter F in braille

dots 1-2-46 of 26⠋

dots 1-2-4. Dots 1-2-3 run down the left, 4-5-6 down the right.

F in braille is dots 1-2-4. A–J use only the top four dots (1, 2, 4, 5).

A capital F has the capital sign, dot 6, in the cell before it: ⠠⠋.

In Grade 2 (contracted) braille, f standing alone as a word means “from”.

After the number sign, f is the digit 6: ⠼⠋.

Don't mix it up

D: D is F flipped left to right (dots 1-4-5). Check which column the dots are in.
B: B drops dot 4 (dots 1-2).
C: C drops dot 2 (dots 1-4).
G: G adds dot 5 (dots 1-2-4-5).

Tap the dots for F, then Enter. On a keyboard, press F D S / J K L together and let go.

F is in Letters A–J. Braille a Day brings it back tomorrow to answer from memory, then again just before you'd forget. Five minutes a day.