As the relentless Israeli onslaught pushes unchecked into its second weekend, the death toll of Gaza residents now tops 700 - with over 100 of the victims being children.
According to the UN, since the Israeli bombing and ground invasion began, 1 child is killed in Gaza every hour.
On the other side, so far 35 Israelis have died in the conflict.
U.N. High Commissioner for Human Rights Navi Pillay said yesterday that there was a strong possibility that Israel was committing war crimes in Gaza, where medical officials say most of those killed were civilians.
Gaza has been rocked by regular bouts of violence since Israel unilaterally pulled out of the territory in 2005.
A spokesman for the Gaza Health Ministry, said that in addition to the 15 dead, another 200 people were wounded in the indiscriminate attack.
Pools of blood lay on the ground and on students' desks in the courtyard of the school, according to a photographer present at the brutal scene.
While the United States remains among the few countries siding with Israel, much of the remaining world, particularly Europe, has seen widespread protests calling to attention the stark imbalance of power between the Israeli military and the Palestinians.
To address the humanitarian needs of the Palestinians, France has recently announced 11 million Euros in aid toward the civilian population of Gaza and its relief workers.
The NGOs "highlighted the gravity of the situation, the scale of the humanitarian needs of the civilian population and the difficulty of humanitarian workers in getting to the victims," President Hollande's office remarked.