Research News

'Math Ed Podcast' interviews UW-Madison’s Ellis about latest research

September 09, 2015

UW-Madison’s Amy Ellis recently appeared on the “Math Ed Podcast” to talk about her latest work.

In the Aug. 23 episode, Ellis discusses her article, "Quantifying exponential growth: Three conceptual shifts in coordinating multiplicative and additive growth," which was published in the September 2015 issue of the Journal of Mathematical Behavior.

Amy Ellis
According to the paper’s abstract, this article “presents the results of a teaching experiment with middle school students who explored exponential growth by reasoning with the quantities height (y) and time (x) as they explored the growth of a plant.”

Findings from this experiment “suggest that emphasizing a coordination of multiplicative and additive growth for exponentiation may support students’ abilities to flexibly move between the covariation and correspondence views of function.”

Ellis is an associate professor with the School of Education's No. 1-ranked Department of Curriculum and Instruction.

The Math Ed Podcast features interviews with mathematics education researchers talking about recent studies, and is hosted by University of Missouri assistant professor of mathematics education Samuel Otten.

To listen to Otten’s interview with Ellis, check out this archive on the Math Ed Podcast website.