Muslim pupils must study two religions under government plans to tackle extremism in schools following the Trojan Horse plot.
Changes to religious studies qualifications are expected to be set out by ministers next week when the subject criteria for GCSEs is published.
Faith schools are likely to see the biggest impact as they can currently choose to teach their own religion and disregard others.
Under new government plans to tackle extremism in schools, Muslim pupils will have to study two religions
As well as studying at least two religions, pupils will also be expected to debate moral dilemmas in the context of religious beliefs in class.
The modifications to lessons comes after the alleged Trojan Horse plot by hardline Muslims to infiltrate schools in Birmingham.
It was originally sparked by a leaked letter in March this year – now widely believed to be a hoax – which alleged to be from Islamists in the city plotting to seize control of a number of school governing bodies.
Birmingham City Council revealed a month later that it had received ‘hundreds’ of allegations of similar school takeover plots – some dating back 20 years.
Tahir Alam, chairman of the Park View Education Trust which runs six schools in the city, resigned after he was found to have written a detailed blueprint in 2007 for the radical ‘Islamisation’ of secular state schools.
The government hopes by tweaking religious studies lesson criteria it will help tackle cultural isolationism and extremism.
But despite this, schools will be able to decide how much teaching time to give each faith – so pupils could spend three quarters of the course studying one faith and just a quarter on the other.