JMAT_V2_N3_A1 Diana Cheng Tetyana Berezovski Journal on Mathematics 2277-5137 2 3 1 6 Calculus, Problem Solving, Pre-Service Teacher Preparation In light of the Winter Olympic Games, a modeling problem is presented in the context of pair’s figure skating. Prospective and in-service high school teachers used related rates to solve the problem that involved differentiating the Pythagorean theorem and a trigonometric equation. Student work is analyzed and discussed. July - September 2013 Copyright © 2013 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=2456