{ "item_title" : "Perfect Balance", "item_author" : [" Peg Marson", "Ronald Jay Marson "], "item_description" : "Differentiated instruction at its hands-on best. Students fold, cut and tape two simply elegant (and accurate ) paper beam balances included in this book. Activity sheets prompt kids to use one balance to make quick sense of arithmetic functions and algebraic equations, and the other for a playful exploration of mass and weight. Even preschoolers will delight in age-appropriate inquiry. When you finish the unit, let students take these cheap and simple lab instruments home to wow their families. Great cross-age learning opportunities ", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/0/94/100/869/094100869X_b.jpg", "price_data" : { "retail_price" : "25.95", "online_price" : "25.95", "our_price" : "25.95", "club_price" : "25.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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