{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"How Teachers Taught: Constancy and Change in American Classrooms 1890-1990 (Research on Teaching)","author_name":"Larry Cuban","thumbnail_url":"https://www.ebooknetworking.net/books/080/773/big0807732265.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0807732265.html\">How Teachers Taught: Constancy and Change in American Classrooms 1890-1990 (Research on Teaching)</a>","width":400,"height":300}