I found this podcast from this 
post:
I subbed today for a 7th and 8th grade teacher. I’m not exaggerating when I say at least 50% of the students were at a 2nd grade reading level. The students were to spend the class time filling out an “all about me” worksheet, what’s your name, favorite color, favorite food etc. I was asked 20 times today “what is this word?”. Movie. Excited. Trait. “How do I spell race car driver?”
I’ve only listened to one episode so far, but it’s really well produced, seems well-researched and very well put together.
From what I gather so far, the ways that the American public school system “teaches” kids how to read is not only completely wrong, but actually saddles them bad habits which fundamentally hinder their reading comprehension.
A huge swath of American adults are functionally illiterate, and I think I’m starting to understand why.
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I remember reading about how some 1st/2nd gen young immigrants (like under 10) not really being able to speak any language cause their parents didn’t speak their language at home with the hope of helping the kids get a leg up - except they weren’t stellar at English and could’ve used a lot of adult ESL classes. So those kids never really got their parents first language and they couldn’t really speak English, and they were kind of a mess at school for a bit. The official guidance was, just speak to them in your most proficient language and the school system will catch them up in Kindergarten and Grade 1.