Compairing means

Abstract

A classroom mathematical exploration of the mean In this article, we outline a series of explorations with data, spanning between 3 and 5 lessons, to develop conceptual understanding of the mean. These explorations were field tested with 5th class children in Limerick city schools. While various real contexts could be used, this article focuses on an activity which examines the accuracy of the assertion that a person’s foot is the same length as their forearm.