Cookies e notebook

The Math of Chocolate Chip Cookies

Traditional Chocolate Chip Cookie RecipeIngredients2 1/4 cups all-purpose flour1 teaspoon baking soda1 teaspoon salt1 cup (2 sticks) butter, softened3/4 cup granulated sugar3/4 cup packed brown sugar1 teaspoon vanilla extract2 large eggs2 cups chocolate chips

DirectionsPreheat oven to 375° FCombine flour, baking soda and salt in small bowl. Beat butter, granulated sugar, brown sugar and vanilla extract in large mixer bowl until creamy. Add eggs, one at a time, beating well after each addition. Gradually beat in flour mixture. Stir in chocolate chips. Drop by rounded tablespoon onto ungreased baking sheets.Bake for 9 to 11 minutes or until golden brown. Cool on baking sheets for 2 minutes then transfer to a cooling racks for 10 more minutes.Enjoy!

Measuring the Ingredientsmeasurement

• Measurements in this recipe include• Tablespoons• Teaspoons• Cups

• It is important to make your measurements exact so that your cookies come out tasting delicious!

• Most cookie recipes, such as the one on the previous slide, express measurements as a fraction.

• An example would be the 3/4 cup of brown sugar.

Converting the Recipealgebra, data analysis and probability

• The measurements, otherwise known as your referents in the recipe, are proportional to one another.

• Sometimes you may not have the referent, such as a cup or a teaspoon you need, and you may have to convert your recipe.

• Some helpful conversions include:• 3 teaspoons = 1 tablespoon• 16 tablespoons = 1 cup• 2 cups = 1 pint• 4 cups = 1 quart

Many Parts, One Cookienumber and operations

• Although there are many ingredients that go into making a cookie (the parts) the end result once the recipe has been carried out is a delicious cookie (a whole)!

Oven Temperaturemeasurement

• The chocolate chip cookie recipe calls for the oven to be preheated. This means you will need to turn on the oven before beginning the other steps of the recipe so it will have enough time to warm to the needed temperature.

• Ovens in the United States are measured in degrees Fahrenheit and are displayed as a small circle followed by an F.

• This recipe calls for the oven to be heated to 375°F.

Doubling and halving recipesnumber and operations

• Sometimes you will not want 36 medium chocolate chip cookies.

• You may want 18 cookies or 72 cookies.• Decreasing your recipe by half is known as halving

the recipe and increasing your recipe to twice as much is known as doubling the recipe.

• All you need to remember is to either multiply your ingredients by two or divide your ingredients by two.

• You can also triple or quadruple a recipe.

Shapes of the cookiesgeometry

• Cookies usually come in a round circular shape, but they do not have to.

• Cookie bars, which are rectangles, are often eaten by rolling the cookie dough into a pan and baking it as a sheet of cookie. As it cools it is cut up just like brownies are.

• Cookies can also be made into triangles by cutting the sheet of cookies that way, or even giant circles by placing the dough into a large circular plan.

Probability of chips in cookiesprobability

• There are 656 chocolate chips in one 12 oz bag of chocolate chips.

• One 12 oz bag of chocolate chips makes 36 medium sized cookies.

• This means that because there are 656 chocolate chips in 36 cookies there are about 18 chocolate chips per medium cookie you make.

Geometry of a Chocolate Chipgeometry

• Chocolate chips have a very specific shape. • They have a flat bottom, a wide and circular

center, and become more narrow at the top of the chip.

• This is also known as a teardrop shape.• Each chocolate chip is 1cm at its base.

Timemeasurement

• Time is very important with cooking.• Time is used in this chocolate chip cookie recipe to make

sure the cookies are baked so they look delicious, taste delicious, and will not make the taster sick.

• Time is spent preparing the ingredients, mixing the ingredients, baking the cookies, and letting them cool.

• The referents for time include seconds, minutes, hours, and days.

• This recipe uses minutes as the referent.• Make sure you leave some minutes for eating the cookies

too!

Sharing per personnumber and operations

• It is always kind to share your freshly baked cookies with a friend, your class, or a family member.

• To do this you will need to make sure everyone gets the same amount of cookies.

• One way to do this is by using a division algorithm.• If you have 18 students in the classroom and you have 36

cookies that means each student can have 2 cookies each.

What is a dozen?number and operations

• This recipe makes 24 large chocolate chip cookies or 36 medium sized cookies.

• That means there are two dozen large cookies or three dozen medium cookies!

• A dozen is another word for twelve.• Many things besides cookies can come in a

dozen such as eggs or donuts.• A bakers dozen is 13!