The wizard of oz interface to conduct some of the user studies of this work: https://www.sciencedirect.com/science/article/abs/pii/S2212868916300812

Press 'i', to listen introductory story at the beginning of each level,

Press 't', when the piece is in right place,

Press 'o', when the orientation is wrong,

Press 's', when the shape is wrong,

Press 'l', when the location is wrong,

Press 'r', when kid recognized the character wrong,

Click anywhere on the screen to pass to next level.

All the sound files are in Turkish. If you want to change the language, you can replace it from the fb_sounds folder