In the article: [i]Just Five Does It: Using Five Numbers to Make Patterned Squares[/i], Margaret Kenney; Stanley Bezuszka, [b]Math Teaching in the Middle School[/b], April 2007
[url]http://www.nctm.org/publications/article.aspx?id=20633[/url]
This sketch allows you to see the results of a pattern more quickly - which may or may not be an advantage. The article is about using this situation to generate student conjectures - great stuff.
