Molly Kingsley, the co-founder of the parent campaign group Us For Them, was critical of the current testing regime which encourages students to test themselves twice a week at home.
She said: “Testing is perpetuating a cycle of disruption at a moment in time that kids desperately need normality.”
Critics argue the Government should cut the mass testing regime for healthy children.
Ministers recently cut the self-isolation period from ten to seven days for those who have a negative lateral flow test on day six and seven of their isolation.
Some MPs are now urging the Government to go further.
They want the isolation period for asymptomatic children to be cut to five days so as to minimise lost learning.
Robert Halfon, the Tory chairman of the education select committee argued that isolation periods should be cut for students and teachers.
He said: “The most important priority the Government should have is to keep children in school.
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However, there is no indication at this stage that cutting the isolation period to five days is something that The Department of Education is considering.