Playforever Luft Biba Ravensburger offering flexibility to work on offering flexibility to work on the puzzle from any side You can also promote learning by: Having the child identify and match worm colors to the puzzle board Naming the numbers on the worms as they fit into their corresponding positions on the board and counting aloud from 1 to 10 Guiding the child through the maze of the apple from 1 to 10 Experimenting with stacking the worms as high as possible Engaging in discussions about worms While it is a joy to play with Luft Biba looks great on the shelf when playtime is over and is just one of many to collect in the Playforever Luft range