On Sept. 29 of the Mystery Year, First Lady Barbara Bush's popular book about the family dog reached #1 on the New York Times Best Seller List. During the mini lesson or review activity to find the year, students solve math clues about rate, proportions, division by a unit fraction, and greatest common factor. This puzzle is perfect for 6th graders and up to use at any time.See the complete PREVIEW that shows all pages of the PDF:2-page digital version with horizontal layout, prepped for Easel 1