Letters and fonts
English uses 26 letters and knowing the names of these letters is essential if we are going to talk about them. But, there is a whole lot more to know about letters than just their names. (We all have a name as well, but our roles are even more important.)
Letter names are not sounds.
There are 44 sounds in English: 20 vowel sounds and 24 consonants. We open our mouths for vowel sounds and we constrict the airflow in different ways when we make consonant sounds.
Chinese-background learners need to know that the 26 letters can be written in different forms - in upper and lower case, in printed and cursive form. The letters, 'a' and 'g' take different forms in different fonts. There is a recommended stroke order for printing the letters, and there are conventions for joining them in cursive writing.
Yes, it's important to teach students to read and write capital letters for the completion of forms, but texts written in all-caps are quite hard to read for learners who are new to the alphabetic script. (The same applies to English-speaking youngsters.)
'Teacher-cursive' in hand-written feedback comments and on the whiteboard can also present a challenge to students who are still learning a new writing system.