Quiz elements

[EllenHu]

In the walk some quiz elements should be integrated. We could let people guess the circumference, the height, the age, a story element that is linked with the history of the city, the kind of tree, ....

A special quiz element could be making people determine which tree they are looking at, by having them answer a few questions about the leaf shape. In the end they could get a message that tells them if they made the right choices or not and give them some info on the tree.