How do you complete the pentagonal room

get the silver key out of the crayon box by clicking on the icky green crayon. get the first crystal by going to the window and clicking the left blind handle and then the right one, do the puzzle and u should get it. to get another crystal, get the notebook out of the desk drawer and click on the little piece of paper sticking out, it should give u the rest of that ripped piece of paper, go to the chart thing on the wall, click on the piece of paper then click 2 times on it then solve the other puzzle.and that is all i got to.