Students in general schools in Vietnam are using English text books written by Vietnamese teachers. The books are very different from text books by Oxford . They have long texts on serious subjests , not interesting for children . They pay little attention to grammar and almost there are no pronunciation practice.
Also, there are so many materials available freely online, that we're spoiled for choice nowadays.
There's plenty of good stuff out there as well.
Add them to our links database here: http://www.usingenglish.com/cgi-bin/links/add.cgi
(there's a bilingual section in the ESL section, which would be ideal for you, vtdigitial- http://www.usingenglish.com/links/En...tes/index.html)
Harry, I had a quick look and will go back when I've got through all I have to do here. I did notice that the Contact page brought up an error message.