Dear iman0493,

Children usually know when they have done badly in any kind of test, so it should not be necessary to tell them what they already know. Whenever the children in my class make a mess of something - and they certainly do, from time to time - I emphasise that it's not so bad if they see where they went wrong and then make sure that they don't do the same thing again. "How can we do better?" is the important question, whether we score nine per cent or ninety.

Yes, Maths is definitely an important subject and one in which we want the children to do well, but destroying a child's confidence and giving him or her unnecessary worries does not seem right to me.