Child's Understanding of NumberThe authors report the results of some half dozen years of research into when and how children acquire numerical skills. They provide a new set of answers to these questions, and overturn much of the traditional wisdom on the subject. Author: Rochel Gelman, Charles R. Gallistel, C. R. Gallistel Publisher: Harvard University Press Published: 12 12 1978 Pages: 280 Binding Type: Paperback Weight: 0. 95lbs Size: 9. 29h x 6. 05w x 0. 83d ISBN: 9780674116375
Shopping security
Each payment you make on thelockerguy is secured with strict SSL encryption and PCI DSS data protection protocols