JSM 2004 - Toronto

Abstract #300425

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Activity Number: 136
Type: Luncheons
Date/Time: Monday, August 9, 2004 : 12:30 PM to 1:50 PM
Sponsor: Section on Statistical Education
Abstract - #300425
Title: Save the Equation for Last - SOLD OUT
Author(s): Steve C. Wang*+
Companies: Swarthmore College
Address: Dept. of Mathematics and Statistics, Swarthmore, PA, 19081,
Keywords: teaching ; regression ; pedagogy ; education
Abstract:

When introducing a new topic in an introductory statistics course, we often begin by giving a formula and then explaining what the formula measures and how it measures it. We will discuss an alternate approach: saving the formula for last. Instead of beginning with a formula, one can stress the concepts or intuition first, and only later give a specific equation. I will demonstrate this approach using a series of questions on the conditional standard deviation in a simple linear regression setting. These questions would be trivial to solve with a formula, but without the formula they encourage students to think about the meaning of the conditional standard deviation and how it relates to the marginal standard deviation.

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Revised March 2004