@inproceedings{58297237f84b49b7b239d5ed4074e7dc,
title = "Teaching Angles by Abstraction from Physical Activities with Concrete Materials",
author = "Paul White and Michael Mitchelmore",
year = "2003",
language = "English",
pages = "4--403--4--410",
editor = "Pateman, {Neil A.} and Dougherty, {Barbara J.} and Zilliox, {Joseph T.}",
booktitle = "Proceedings of the 2003 joint meeting of PME and PMENA",
publisher = "CRDG, College of Education, University of Hawai'i",
note = "Conference of the International Group for the Psychology of Mathematics Education (27th : 2003) ; Conference date: 13-07-2003 Through 18-07-2003",
}