Today I spent an hour teaching two Chinese guys to sound out the ABC's. They had a difficult time with the letters M, N, and Z. I also emphasized the importance of sounding out the letters at the end of each vocabulary. One word they have difficulty pronouncing was "wrong." They also don't know how to pronounce the "th" sound where they need to stick their tongues between their teeth.
It would be good if they can learn from the "Hooked on Phonics" material so they can follow the cassettes.
I enjoy teaching them English because I'm learning also.