When I went to my younger son’s parents evening the other image day, the longest queue was to see the maths teacher. The reason was because she had to explain changes in the curriculum which are certainly not going to benefit James, and others like him.

Up until last year, maths GCSE was taught at three levels – higher, intermediate and foundation. My eldest son David passed the intermediate with a B grade – the top grade achievable. We shall never know if he could have reached an A.

It’s even worse now as the intermediate level has been scrapped, so you are either a top grade or bottom grade student. And James is in the middle, like thousands of other kids.

So this is where the pressure is on for teachers, kids and parents as a decision will be made later this term about which paper James sits next year. Many of the top grade students are already working on the higher level paper, so the chances are James will struggle to keep up with that class and it could cause him a lot of anxiety, so I have offered him private tuition with a neighbour who is a secondary school maths teacher.

If James takes the foundation paper, the top grade he can achieve is a level C. It will not motivate him at all, he will be working below his level.

So the maths teacher explained this over and over again to all the despairing parents, she kept blaming the government for introducing this flawed system which has no logic and nobody thinks is fair or workable. It is particularly letting down the kids who would like to work for a B grade, the ones who fit most comfortably in the intermediate group.

Crucially, having toured several universities with my elder son David, I noticed that they all required level B GCSE maths as a condition of acceptance on their courses. As many intermediate level kids will not now be able to achieve this, this could seriously scupper their university plans. It means a potential generation of kids failed by this ill thought out maths system, a core curriculum subject which should be inspiring, not demoralising, those who want to do their best and reach their full potential.

This is why I wholeheartedly welcome a forthcoming debate, The Value of Mathematics, with Michael Gove, Secretary of State for Children, Schools and Families, and leading academics to mark the launch of Reform’s latest research paper which analyses the contribution of mathematics to the UK economy and how standards and attainment in maths education have changed over time.

The report also makes recommendations to increase the value of mathematics. The event will bring together key thinkers in the world of mathematics including policy makers, academics and business leaders and is being held on 2 June at the London Mathematical Society.

I hope some Labour education ministers have that date in their diary, that they will participate in this debate.

*I also believe our kids rely too much on calculators today instead of using their brains. I went into the pharmacy recently and bought three items which cost £1.98. The tills were not working and not one of the three assistants could work out my bill by using mental arithmetic. I tested James on this at the breakfast table, and, thankfully, he passed.