From summaries of incidents reported in U.K. schools since the initiation of Prevent, a government counterterrorism program. Schoolteachers and staff are required to monitor their students for signs of extremist behavior. Children determined to be at risk are referred to a deradicalization course.

A high-school boy wore a free palestine badge to school.

A fourteen-year-old boy refused to participate in music lessons, citing a religious conflict.

A student read articles and watched documentaries that were created by a Middle Eastern news agency.

A boy attempted to check out a book about terrorism that was available in his school…