The broadcast shows a man, identified as a teacher in the bombed school, suffering from burns in most of his body.
Wounded from the attack
BBC video. Contains graphic imagery
"The plane bombed a residential area in Orum a-Kubra," he said. "We tried to evacuate quickly, but it appears that fate had the upper hand today."
"The students gathered in one place, and then the plane got us," he added.
In another video, taken after the attack, a doctor who treated the wounded said that 10 students were killed and about 50 injured, most of them suffering from severe burns caused by napalm.
The BBC report described the scene and said the wounded looked like "walking dead."
A BBC reporter at the scene estimated the bomb contained either a napalm type explosive or thermite.
A British medic, Dr Rola, who was in Syria
with the charity Hand In Hand, treated the victims at the hospital.
She said: "It is just absolute chaos and carnage here. We have had a massive influx of what looks like serious burns, seems like it must be some sort of, not really sure, maybe napalm, something similar to that.
"But obviously within the chaos of the situation it is very difficult to know exactly what is going on."
She said later: "We feel like some sort of, not even a second class citizen, like we just don't matter. Like all of these children, and all of these people who are being killed and massacred, we don't matter.
"The whole world has failed our nation and it is innocent civilians who are paying the price.".
Meanwhile, the NBC network released a survey which shows 50% of Americans oppose an US strike against Syria. Close to 80% of the surveyed said the President Barack Obama must have the Congress' go-ahead before a military intervention against Assad's regime.