It can be hard for some children to gain the concepts of mathematics.
Make mathematics real with the child – try introducing terms such as ‘half’ and ‘quarters’ when you are cutting up a cake.
Count items when you are out and about – such as the number of cars you can see on a journey.
Useful equipment to teach this can be Numicon –
Use everyday opportunities to reinforce learning about mathematics – cooking is excellent for this – when cutting a pie into slices for example you could talk about half/quarter etc.
Try talking about heavier/lighter/more/less, taking away and adding when baking a cake.
Check that the child understands the language of mathematics – you could make a game with different signs and see if he or she can group all the signs that mean the same thing – such as plus, add, addition, sum
http://www.mrbartonmaths.com has lots of free maths activities all ready to practise.
You can also try using a Slavonic Abacus -You can see this on this link as well as downloading some ideas how to use it with the child
Make sure the child understands the “language” of mathematics- do they know that +, plus and add are all the same thing, for example?
Individuals with mathematical problems can sometimes be given a diagnosis of dyscalculia.