id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
dialog-122	Platas, Linda Michele	Acquisition and Measurement of Knowledge of Mathematical Development	2014	7	.pdf	application/pdf	3318	171	40	Copyright © 2014, ISSN: 1930-9325 RESEARCH-TO-PRACTICE SUMMARY Acquisition and Measurement of Knowledge of Mathematical Development Linda M. Platas University of California, Berkeley This study provides preliminary evidence for the reliability and validity of the Knowledge of Mathematical Development Survey, which was designed to measure early childhood teachers’ knowledge of early mathematical development. Studies have revealed several challenges facing the early childhood education (ECE) field regarding the implementation of such policies: (a) current classroom support for early mathematical development is generally limited or non-existent (Klibanoff, Levine, Huttenlocher, Vasilyeva, & Hedges, 2006; Varol et al., 2012); (b) teacher education and professional development programs frequently lack instruction in early mathematical development (Ginsburg, Lee & Boyd, 2008; Sarama, DiBiase, Clements & Spitler, 2004); and (c) the field lacks 124 PLATAS research-based instruments that can reliably assess teachers’ knowledge and evaluate the effectiveness of education and training in early mathematics (Maxwell, Field, & Clifford, 2006).	cache/dialog-122.pdf	txt/dialog-122.txt