[CTR Review] Park Math by Duck Duck Moose

This sixth App from Duck Duck Moose Design continues a streak of excellence in early childhood interactive craftsmanship that dates back to last year's Wheels on the Bus. The App is designed for iPhone and iPod Touch and contains seven easy-to-explore games, each with multiple ways to try out some powerful math concepts -- of the variety that will someday loom at the root of an SAT question.
The games include Swing (Count up to 50 as a rabbit swings. You can either watch, or "push" the rabbit with your fingertip); Slide (Help ducks climb to the top of a slide. Quantities are show both visually and in an equation, simultaneously); Seesaw (Balance a seesaw by adding and subtracting mice); Apple Tree (Subtract as apples fall from a tree); Sandbox (Complete patterns by dragging and dropping toys); Bench (put dogs and numerals in order, from smaller to larger. It's especially nice that you can make the order from either left to right or right to left); and Picnic: Counting - Feed a hippo the correct number of food items.
It is possible to toggle between two levels of play (preschool and kindergarten). Level 1 includes counting up to 20 and addition/subtraction with numbers up to 5. Level 2 includes counting up to 50 and addition/subtraction with numbers up to 10. The iPad version, called Park Math HD is in the works, and and will include a third level for First Grade with counting up to 100 and addition/subtraction with numbers up to 20. This is a 13.5 MB download, for iPhone OS 3.0 or later. It is well worth the $2 download. See the full review, with ratings, in the October issue of Children's Technology Review.