Adjusting a Recipe Project
Working With Fractions
You don’t have to do any baking to practice the math. Have fun! Maybe you can find a recipe for lemonade. If you learn how to double it you can have a lemonade stand one super hot day.
- Find a simple recipe in a cookbook.
- Write the original recipe.
- Rewrite the recipe for twice as many people. Explain your strategy.
- Rewrite the recipe again for half as many people. Explain your strategy for this one two.
You can use the cookie recipe below if you’d like.
If you decide to do the actual baking, make sure to get permission first. If you’re using one of your adjusted recipes – have someone double check it. The fractions can make it tricky work.
Easy Sugar Cookies – makes 12
Ingredients:
- 2/3 cup flour
- ¼ teaspoon baking soda
- 1/8 teaspoon baking powder
- ¼ cup butter, softened
- ¼ cup white sugar
- 1 small egg
- ¼ teaspoon vanilla extract
Directions:
Preheat oven to 375 °.
In a small bowl stir together flour, baking soda and baking powder. Set aside.
In a large bowl cream together the butter and sugar until smooth.
Bear in egg and vanilla.
Gradually (little by little) blend in the dry ingredients.
Roll rounded teaspoonfuls of dough into balls and place onto an ungreased cookie sheet.
Bake 8 to 10 minutes or until golden brown.
Let stand of cookie sheet two minutes before removing to cool on a wire rack.
Leave a comment to show the two ways you adjusted your recipe. Which one was harder? Why do you think that is so?