The use of manipulatives in mathematics are essential for the teaching and learning of abstract concepts. Virtual manipulatives take this to a new level with engaging graphics with dynamic generation and manipulation. Virtual manipulatives also have an advantage of allowing for universal access (at school or home). Research now suggests that the use of virtual manipulatives can lead to a deeper understanding of concepts when compare with concrete manipulatives.
Here’s a great article from the Center for Implementing Technology in Education on the use of virtual manipulatives in teaching mathematics (http://www.cited.org/index.aspx?page_id=151).
Check out Matholia’s library of over 50 engaging virtual manipulatives found under the Tools tab on the Matholia home page.