With the new science syllabus, the emphasis on hands on learning is massive. Personally, I find that due to this very reason, the foundation layer step is being taken quite lightly.

Hands on experimental learning enhances the understanding of the topics but the knowledge of the topics need to be there. It bring forth the empasis on theoretical knowledge which the child has learnt.
One approach would be,

1. Draw out a topical concept map. This would help your child in terms of remembering the key words to the particular concepts.

In primary school, children are extensively taught how to divide in the abstract form while for us adult, we would simply reach for the calculator and voila! you have the answer. I pity the children.

Well, to teach division, I would take a 3 step approach. In fact, in any teaching of mathematics, these 3 approaches should be taken systematically. This is called the CPA approach (ask any educator and they should know about this approach for primary math).

Problem sum is always a problem to most children  (pun intended).

Well before we even talk about problem sum, the child needs to have a strong foundation in what is called mechanical calculation questions. These are simply questions which deals with straight forward calculation. These are what I would call simple mini problems.

Then we go to what used to be called story sums or now known as problem sums.