Repeated Addition
A Multiplication Array is simply a number of symbols ordered in neat rows and columns. When offering your children these arrays, simply speak to them about what is going on in theme. Also ask them to think of the multiplication symbol having the meaning of "rows of". This way, when your child thinks of 3 x 5, they will think of 3 rows of 5.
This method does go hand in hand with the 'grouping' method of teaching multiplication. These two methods are similar, yet different.
Here is a full set of multiplication array problems for you to offer your child.