US President Donald Trump has said arming teachers could prevent school shootings like that which left 17 people dead last week in Florida, APA reported citing BBC News.
A staff member with a gun could end an attack "very quickly", he said.
Trump floated the proposal as emotional survivors of the 14 February massacre implored him to make sure something similar does not occur again.
The Republican president also backed calls for improved background checks on gun buyers.
Other survivors meanwhile lobbied Florida lawmakers on gun control.
"We'll be very strong on background checks, very strong emphasis on the mental health of somebody," Mr Trump told the students from Marjory Stoneman Douglas High School during Wednesday's televised event at the White House.
At least 17 people are dead after a 19-year-old man opened fire at a high school campus in Parkland, Florida.
The suspect was Nikolas Cruz, a former student at the school who had been expelled. He escaped with fleeing students but is now in police custody.
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