Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Working with Fractions
Product description: From the team that brought us You Can, Toucan, Math, comes another fun way of looking at something many kids have trouble getting the hang of: fractions. Although there is no narrative story within the book to explain how fractions work, there are plenty of imaginative, creative approaches presented in each fraction problem. The computer-generated artwork is very bold and brightit not only enlivens the pages, it graphically explains the concepts within the "story problems" it accompanies. A lot of essential terminology, like "numerator" and "denominator" is explained, along with functions like comparing, multiplying, and dividing fractions. A former math teacher, Adler ably covers a lot of essential ground in one hardcover book and makes it fun. The book is sure to be quite useful for parents and teachers alike in introducing techniques for solving word problems. The reinforced library binding and heavy duty paper stock assures that it will stand up to repeated use., David A. Adler taught math for eight years. In that time he learned many things from his students -- including the fact that they thought fractions were hard. So he decided to prove that learning how to work with fractions is not only easy, but also fun! He lives with his family on Long Island. You can learn more about him at www. davidaadler.com. Edward Miller loves to make concepts clear to kids and has demonstrated that in his previous nonfiction books. School Library Journal praised his Alphabeep: A Zipping, Zooming ABC by Debora Pearson as "stunningly illustrated." He lives in New York City. You can visit his website at www.edmiller.com.
Product price: $7.99
Product brand: Visit Amazon's David A. Adler Page
Target attributes: Format
Answer: attribute: format
value: hardcover
source: product description