Quoting B♥Z:" As a mother, with a daughter that has pretty bad speech delays, I am so glad you are talking to your ... [snip!] ... was "freaking speaking English" and push her down. Kids will tell her she can't play with them, etc. I feel terrible for her."
He was in school with her last year too, and he liked to read to her and play with her, but she is in a special class this year with a LD teacher. He was asking about why she wasn't in his class this year, and if he could get a special teacher too.
I really don't know what to say to make him understand, other than she has to have help to do things, and that she learns differently than him.