I have a very bright 5 year old DD in Y1(not yet sure if she's actually in the G&T league, but among top in class for everything) and a struggling 8yr old DS in Y4. DD will very soon "overtake" DS in reading and spelling and doesn't she just like to jump in and show him! She's not doing it maliciously - she just wants to join in, but it makes him look stupid. She's only 5, so it's a tough thing for her to understand the dynamic, at work here, although we've tried to e.g. encourage her to stay quiet if we ask DS a question or distract her with something of interest to her. Just wondering if anyone has any good tips for this kind of situation? Thank you!