{"product_id":"a-focus-on-ratios-and-proportions","title":"A Focus on Ratios and Proportions","description":"\u003cp\u003eThis book makes math education research on ratios \u0026amp; proportions readily accessible to pre-and in-service teachers of grades 6-8. Using extensive samples of student work and based on research gathered in the OGAP, this easy-to-use book demonstrates how students develop understanding and fluency involving ratio \u0026amp; proportion. \u003c\/p\u003e","brand":"Taylor \u0026 Francis Ltd","offers":[{"title":"Default Title","offer_id":53514399089007,"sku":"9780367374051","price":408.53,"currency_code":"BRL","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/9384\/9711\/files\/0367374056.jpg?v=1790069007","url":"https:\/\/internacional.umlivro.com.br\/products\/a-focus-on-ratios-and-proportions","provider":"UmLivro Internacional","version":"1.0","type":"link"}