3.  A transparent rectangle will slide to the left from the right (by clicking) on the drawing window with a drawing displayed. The subject will then draw to make the drawing behind move. When he’s done, he will slide the transparent rectangle to the left and hide making a second transparent rectangle move to the drawing window. He will then draw to make the first drawing move some more. He will repeat the same process until he is done making the first drawing complete its movement. Afterwards, he will slide the first drawing on the drawing window to the left and hide, making the second drawing to be displayed on the drawing window. Again, he will draw on the transparent rectangle to make the second drawing move, then he will draw again on the next transparent rectangle to make the second drawing move some more until he is done. He will repeat the same procedures on the drawing window and on the corresponding transparent rectangles until he is done with all the movements for the drawings as he planned. He will then click to make