When the senior officers enter the bridge after the initial briefing on the Soliton Wave by Dr Ja'Dar, Deanna, speaking to Worf about Alexander's teacher, should have referred to MISS Kyle rather than MRS Kyle.
The goof items below may give away important plot points.
Incorrectly regarded as goofs
Since the ships sensors could detect Alexander (the computer even states his name) they could have performed a site to site transport of Alexander. However, LaForge stated shortly after the computer states Alexander's name, that transporters are offline.
During a crisis, Alexander gets trapped in the Bio Lab, and Worf and Commander Riker are sent down to get him out. It would be very unusual that two Bridge officers can be spared at this critical moment, while there are over a thousand people on board the Enterprise D, many of whom should be able to get to the Lab much faster. It should be acknowledged, though, that Worf would certainly not be standing idly by while his son is in mortal danger. And a worrying father wouldn't be any good on the Bridge anyway.