Eyewitnesses said Israeli forces prevented Palestinian residents from reaching the school to rescue their children as the settlers carried out the attack.
Israel will allow only 10,000 Palestinians from the occupied West Bank to attend Ramadan Friday prayers at Al-Aqsa Mosque, far fewer than in previous years.
Scores of Palestinian families in the West Bank are seeking news of their loved ones jailed for years in Syria after the opening of former Syrian regime jails.