Try to keep it practical (like something that would be fairly doable, you just havent gotten around to it…yet)
There are apps that you can input text into and they can replace the characters in each word incrementally to help learn them. Wanna get into that
How to convert various units of measurement. (Including between imperial and metric.)
2.54 centimeters in an inch. Degrees Fahrenheit is nine fifths of degrees Celsius plus 32. Stuff like that.