However, there was one important point in the article that stood out to me as an ELL teacher (though I think that most people will probably gloss over the tiny paragraph towards the end of the article that contained this information): Children learn language better from a native speaker. To maximize language development in their children, parents should speak to their children in their native language, regardless of what that native language is. Children can then learn English in school after they have a strong foundation in their native language. This is especially true if the parents aren't completely fluent in English.
How This Applies to ELLs
The importance of developing the native language at home isn't always obvious to parents (or school district employees). I have personally met parents who tried to speak only English to their children because they believed that speaking in the native language would hold them back. I have also met school staff who encouraged parents to only speak English with their children because of the same belief. I guess it is a little counter-intuitive...
Oftentimes our work as ESL and Bilingual Teachers leads us down the path of advocacy. It falls on us to educate a variety of stakeholders about the misconceptions that they hold and what research actually shows. We can encourage parents to speak in the native language with their children and develop their academic language in the native language at home. Parents can talk, interact with, and read to their children, all in the native language. This will actually make our jobs as ESL teachers easier in the end because students have more linguistic resources to draw from.
Now if only it were easier to get everyone to see our side of things!