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Parents, you may notice that this recipe offers some handy practice with the mathematical concept of proportion! In this case, the butter, sugar, molasses, and buttermilk are all included in equal proportion, and each one is in 1:5 proportion with flour. So as you’re preparing your ingredients, don’t hesitate to play around with some math. Let’s say, for example, that your neighbor was making this recipe, and she wanted to adjust the recipe to use up one full cup of sugar. Knowing the laws of proportion, how much buttermilk, milk, and molasses does your child think your neighbor will be be using, and how much flour? (Answer: 1 cup each; 5 cups of flour—6 dozen delicious cookies!)