Andrew Rosindell, the Conservative MP for Romford, is pushing the Prime Minister into taking action.
He said the flag should be on display at all times in school assembly halls – no ifs and no buts.
He explained: “All schools should fly the Union Jack outside their school and a different pupil each morning should be given the honour of raising the flag at the start of the school day.
“The flag should also be displayed permanently in school assembly halls.”
His call echoed MP Tom Hunt’s bid to see the flag proudly displayed at schools.
The Tory said any concerns raised by children or staff could be addressed by a simple lesson about what the symbol represents.
Last month there was outrage among MPs after a London schoolmaster agreed to take down the Union flag after students staged a protest inspired by the Black Lives Matter movement.
In September students tore down the flag at Pimlico Academy and burned it before it was replaced with a fresh piece of cloth.
But in April the headmaster agreed to take down the flag e flag “pending a review” after graffiti appeared on the school walls.
Comments such as “Ain’t no black in the Union Jack” and “White schools for brown kids are u mad” were scrawled outside the building.
Conservative MP for Ashfield Lee Anderson slammed the decision to remove the Union flag.
He said it was “very sad” to see the symbol removed particularly “at a time when we are trying our best to bring the country together after the problems with Brexit and coming out of the pandemic”.
He added: “To tear flags down is divisive and not what we’re looking for at this moment in time.”
More than 5,500 people have signed a petition calling for a new rule which would make it compulsory for the flag to be flown at schools and public
In a statement, the petitioner said: “We are a proud independent country with a rich history.
“Let us celebrate that history by flying our Union flag.”