What the h? That’s right, today’s letter is h, in Morse code that is ●●●●.
A mnemonic is to imagine an uppercase H with a dot at each of the four points, with two at the top ends of the vertical lines and two at the bottom ends. As the H fades, the top points fall in line with the bottom points.
And for practice:
●●●● u ▬ ▬ ▬ ▬ ● r
c ●●●● ● ▬ ●● r
w ●●●● ▬ ▬ ▬ r ●
●●● ●●●● ●● ▬