I used brown construction paper to make a very crude tree trunk and branches. I used green, orange and yellow paper to cut out leaf shapes. To earn a leaf to put on his Word Tree, my son had to tell me a word he knew and spell it for me. Then either he or I wrote it on a leaf. I put two rolls of tape (you can use double sided tape) on the back of the leaf. I let my son add the leaf to his tree wherever he wanted to put it.