{"provider_url":"http://dwwlibrary.wested.org/","title":"Key Concepts in Alternating Worked Examples With Practice","type":"video","html":"<iframe src=\"http://dwwlibrary.wested.org/media/key-concepts-in-alternating-worked-examples-with-p/embed_player?iframe=True&amp;embedly=1\" webkitallowfullscreen=\"webkitallowfullscreen\" width=\"560\" allowfullscreen=\"allowfullscreen\" height=\"315\" mozallowfullscreen=\"mozallowfullscreen\" frameborder=\"0\"><\/iframe>","thumbnail_width":560,"height":315,"width":560,"version":"1.0","author_name":"Ken Koedinger, Carnegie Mellon University","provider_name":"The Doing What Works Library","thumbnail_url":"http://cdnassets.mediacore.tv/sites/9953/images/media/2456092l-8MAS5kgw.jpg","thumbnail_height":315}