by Jen Slotter

6-7th Grade
General Math

Multiplication, addition, and subtraction of fractions using common denominators

Jen Slotter
To obtain a downloadable copy of the worksheet that accompanies this bulletin board, click on the button below.

TITLE: Cooking with Math

SUBJECT: 6-7th Grade General Math

TOPIC: Multiplication, addition, and subtraction of fractions using common denominators.

INTERACTIVITY: Students will take each cookie off of the board and answer the question presented on the back. Each question utilizes the information given about each ingredients of the cookie recipe.

DIRECTIONS FOR USE: Just follow the instructions on the back of the cookies and work your way to a delicious review on fractions!! Fill in your answers n the space provided below. When you are done, hand in your paper and receive a tasty treat! (Don’t forget to show your work!)

TIME: Students should not take more than 20 minutes to finish this board.

SPECIAL CONSTRUCTION: The back round is made out of aluminum foil. This was a very inexpensive and eye-catching feature.

CREDIT: Students will receive a homework grade for completing this assignment. They should also receive a cookie for their effort.


Cookie 1.

  • Rewrite the recipe by doubling the amount of ingredients.

Cookie 2.

  • Write the recipe using half the amount of ingredients.

Cookie 3.

Use the following prices and the amounts needed in the recipe to find the total cost of one batch of cookies.

  • 1 cup margarine 40¢
  • 1 cup shortening 20¢
  • 4 cups peanut butter 50¢
  • 6 cups sugar 60¢
  • 1 cup brown sugar 15¢
  • 12 eggs 82¢
  • 1/2 cup flour 10¢
  • 1/2 t. baking powder 2¢
  • 3 t. salt 5¢

Cookie 4.

  • How much would it cost to make half a batch of cookies?

Cookie 5.

  • The recipe calls for 2 cups of chocolate chips. But I want to add 1/3 cup almonds and 1/6 cup coconut. How many cups of chocolate chips would I have to take away to make the total amount of chocolate, almonds and coconut equal 2 cups?

Cookie 6. (Bonus Cookie!!)

  • Create your own recipe!! List ingredients and amounts for your new cookie recipe. Don’t forget to name your recipe!!

Chocolate Chip Peanut Butter Cookies

  • Preheat oven to 375°
  • Beat: 1/2 cup butter or margarine
  • 1/2 cup shortening
  • 1 cup peanut butter
  • 1 cup sugar
  • 1 cup packed light brown sugar
  • 2 eggs
  • Mix: 2-1/2 cups flour
  • 1-1/2 teaspoons baking powder
  • 1/2 teaspoon salt
  • Add to butter mixture and mix well.
  • Add: 2 cups chocolate chips
  • Mix well.
  • Bake 8 to 10 minutes or until set. Makes about 6 dozen cookies. (Hershey’s)

Jen Slotter