Can you show me a "Show Me"?

So I keep talking about these fantastic apps, but I do not believe I am doing an appropriate job explaining them.  Watch what my students have to say about Show Me.  Also, We just finished up another assessment applying the idea of expressions to buying a fish tank.  Take a look at some of the created Show Mes my students created by clicking the links below! Take a look at 3 different ON grade students.  See the different levels of understanding and work....  Want to see the task they were working on?  Open up the PDF.
http://www.showme.com/sh/?h=6CnMZGq
http://www.showme.com/sh/?h=jqLH1Yu 
http://www.showme.com/sh/?h=FFcwwAy