<article_id>JMAT_V2_N4_RP3</article_id>
<title>ICE Math: Geometric Software Illustrating Concentric Circles In Figure Skating</title>
<author>Diana Cheng</author>
<author>Tetyana Berezovski</author>
<journal>Journal on Mathematics</journal>
<issn>2277-5137</issn>
<volume>2</volume>
<issue>4</issue>
<first_page>14</first_page>
<last_page>20</last_page>
<keywords>Mathematical Modeling, Dynamic Geometry Software, Teacher Education</keywords>
<abstract>In light of the upcoming Winter Olympic Games, a mathematical modeling problem involving algebra and geometry is presented via dynamic geometry software in the context of pairsfigure skating. The death spiral involves a lady's and man's forming concentric circles with their blades on the ice. In-service elementary, middle and high school teachers used knowledge of rates and circumference to solve problems involving the death spiral. Teachers' work is analyzed and discussed.</abstract>
<date>October - December 2013</date>
<copyright>Copyright &copy; 2013 i-manager publications. All rights reserved.</copyright>
<publisher>i-manager Publications</publisher>
<article_url>http://www.imanagerpublications.com/Article.aspx?ArticleId=2611</article_url>