Al Jazeera reports that the map was leaked to them by an angry UNRWA employee, incensed that a map that was drawn "from the Israeli perspective" would find its way into Gaza.
The map was created by the United Nations Office for the Coordination of Humanitarian Affairs (OCHA).
Palestinian Arab teachers who saw the map were upset that UNRWA, by distributing it, was plunging itself into politics.
A group called UNRWA Watch said that UNRWA again and again disregards the feelings of the Palestinian Arabs, because even though Israel is a fact, it is rejected by the Palestinian people.
UNRWA refused to comment to Al Jazeera.