{"product_id":"9780880108768","title":"Discussions with Teachers: Discussion 13 of 15: Discussion held in Stuttgart, Germany on September 4, 1919; from The Collected Works of Rudolf Steiner","description":"This lecture is part of the collection \"Discussions with Teachers\" by Rudolf Steiner. Steiner (1861-1925) was an Austrian philosopher, social reformer, architect, and esotericist. He gained initial recognition as a literary critic and cultural philosopher. At the beginning of the 20th century, he founded a spiritual movement, Anthroposophy. He is considered the father of Waldorf education, biodynamic agriculture, anthroposophical medicine and spiritual science.  Algebra to precede the teaching of areas. Introduction of algebra by calculating rates of interest. A shop for the second grade. Rates of movement. Copernicus and Bessel. The entire Collected Works of Rudolf Steiner are available from SteinerBooks.","brand":"Steiner","offers":[{"title":"Default Title","offer_id":47072935280880,"sku":"9780880108768","price":1.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9780880108768_p0.jpg?v=1763848291","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9780880108768","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}