Numbers Sound Puzzle

The 21 wells in the wooden puzzle board feature quantities to count from 0 to 20, with each group matching the puzzle piece that fits on top of it. Every time a piece is placed correctly over the matching quantity, the puzzle says the number aloud--offering immediate, specific feedback that allows children to work independently and answer their own questions as they wonder, ‰ÛÏIs this right? Which number is this? How many is that?‰۝