The wand movement was a simple wave so Sarah decided that she would skip the wandmovement only pratice part and do the combined practice first. She took of her glasses and helped them in her left hand. Her wand was in her right hand and with it she waved it over the one lens and said "Vitrumonia". She then held her glasses out at arm length and compraed the two lenses. She could now actually notice how smudged and covered in fingerprints her lenses had been, as the difference between the two was as clear as night and day. She then did the other lens with a "Vitrumonia" and a wave. Now other people can see her behind her glasses. (strangely she never noticed when her glasses were dirty, it was other people that alerted her to it. That is why Sarah did not mind them being smudged and all).

Now she had to do it to help the class. She went back to the window frames that she had polished and looked at the panes. It was a wonder that the light was actually coming in. Sarah wished she could clean them the mugge way, as that was more fun yet she knew that the point of the lesson was to expand her horizons. She apportioned the pane into sections and then waved her wand at the lowest section. "Vitrumonia" she said. Magically the grime disappeared and its place one could see the world outside.