I teach all my students to memorise the 220 Dolch words. I
don’t use flash cards. Who introduced flash cards and why would one foolishly
use it is beyond me. English is not pictorial or ideograph like the Chinese
script. Even the Chinese script is not memorised by looking at it but by students writing a character a minimum of a hundred times.
I ask my students to list down the Dolch words, introduced in each lesson, in an exercise book and spell out each word five times before going down the list to the next word. Within a short period of time they are able to spell the words. If a kid who is going to vernacular school can learn to memorise 600 Chinese characters in a year what is the problem in memorising 220 HFW?