our reporter tim muffett has been speaking to parents at a school in essex.to come up with different ideas and different varieties... food for thought. i think as a parent you find yourself in a situation where you're feeding your children every day, sometimes not knowing whether you're doing it right or wrong. rebecca, laura, annie, caroline and chris, all have children at arthur bugler primary school in essex. like so many parents they are often unsure as to how much food to give their children. go to baby clinics and things like that when you've got a small child, then you are given guidance. but as the children start the school process and start eating more and doing more then the guidance, i don't feel there is a lot around. the charity the british nutrition foundation wants to help parents become portion wise. and to use hand size as a way of measuring healthy amounts of food. so, like, cheddar cheese, a piece the size of two thumbs together, have you ever heard of that as a guidance for how much cheese you should be giving? personally i haven't. i pers