In PBS KIDS Measure Up!, children ages 3 to 5 join PBS KIDS characters on an adventure through Treetop City, Magma Peak, and Crystal Caves practicing .\r \r Appstore : Playstore : In PBS KIDS Measure Up!, children ages 3 to 5 join PBS KIDS .\r \r In PBS KIDS Measure Up!, children ages 3 to 5 join PBS KIDS characters on an adventure through Treetop City, Magma Peak, and Crystal Caves practicing .\r \r In PBS KIDS Measure Up!, children ages 3 to 5 join PBS KIDS characters on an adventure through Treetop City, Magma Peak, and Crystal Caves practicing .\r \r
