Let’s begin this week’s free apps update with Mermaid Waters: Adventures of Hana & Cory! This free application is targeted towards pre-schoolers, and uses the appeals of underwater adventure to help them practice basic math skills such as number recognition, counting, ordering sizes and basic addition. The game unfolds in a story mode, with narration and more than 30 characters from mermaids to fish, crabs, and other underwater sea creatures. The game provides multiple difficulty levels to cater to each child, and even provides parents with progress reporting on game success! Designed in partnership with educators and parents, Mermaid Waters is a fun, math story adventure with darling graphics!