RATIOS AND PROPORTIONS RECIPE PROJECT - Firelands Elementary School
DUE DATE: October 24, 2014
Ratios & Proportions Project
RATIOS AND PROPORTIONS RECIPE PROJECT
You will apply ratios and proportions to help you convert a recipe to serve more people.
You have found your favorite recipe for a dessert or appetizer and want to bring it to the class party. The problem is your recipe only serves 8 people. Use proportions to increase the recipe to serve 30 people. Make 1 serving per person.
For this project you will need to: 1. Choose one recipe from the internet, cookbook or home. 2. The recipe must have at least 8 ingredients. 3. Use proportions to increase the recipe to serve 30 people (1 serving per person). 4. Create a poster board that includes the following: (Use attached table to assist you) ? Original Recipe ? Ratio for one serving (i.e. if the recipe uses 1 cup of sugar, and the recipe serves 8, the ratio for one serving equals 1/8 c. sugar). ? Proportion used to increase recipe to 30 servings. 1/8 servings=x/30 servings ? Show the work to solve proportion. ? Round your measurements to the nearest half (i.e. 3.222 teaspoons, rounds to 3 teaspoons, 3.666 teaspoons rounds to 3 ? teaspoons). ? Scaled Recipe? Ingredient and new amount needed for 30 servings. ? Explain the math you used to solve this problem. Your strategies! ? Directions how to make the recipe. ? Be creative! Use drawings, pictures, etc. to demonstrate your knowledge of ratios and proportions. 5. Review attached rubric for grading! 6. Extra credit: Make the new recipe for the class!
DUE DATE: October 24, 2014
Table - Proportions to Increase a Recipe Original Recipe serves: ___________
Ratios & Proportions Project
Original Recipe Ingredients
1 Cup Sugar (serves 8) /
Ratio for one serving
1/8
Proportion used to increase recipe to 30 servings 1 = x 8 30
Work to solve proportion
8x = 30 8 8
Scaled RecipeAmount needed for 30 servings 3 ? Cups of Sugar
DUE DATE: October 24, 2014
Write About Your Strategies:
Ratios & Proportions Project
Using complete sentences, describe the math you used to solve this problem.
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DUE DATE: October 24, 2014 Rubric for Recipe Project
Ratios & Proportions Project
Using Proportions
Using Cross Products or Equal Ratios
Increasing A Recipe
Conceptual Understanding
1 Fails to use proportions to increase a recipe?
4 Set up proportions that are incorrect for increasing a recipe?
7 Correctly set up proportions to increase a recipe with one minor error?
10 Correctly set up proportions to increase a recipe?
Fails to use cross products or equal ratios to solve proportions?
Includes a significantly flawed calculation of the amounts needed to increase a recipe? Fails to use
rounding of
measurements
Use cross products or equal ratios inaccurately to solve proportions?
Includes a calculation of the amounts needed to increase a recipe that contains minor errors? Inaccurately rounded most measurements?
Reasonably use cross products or equal ratios to solve proportions? (No more than one minor error ) Includes a reasonable calculation of the amounts needed to increase a recipe? Rounded to nearest half (No more than one minor error )
Demonstrate the ability to use cross products or equal ratios efficiently and accurately to solve proportions?
Includes an accurate and complete calculation of the amounts needed to increase a recipe? Correctly rounded measurements to nearest half.
correctly
Describes strategies for setting up and solving proportions that shows no understanding of the concepts?
Describes strategies for setting up and solving proportions that shows some understanding of the concepts?
Describes strategies for setting up and solving proportions that show a good understanding of the concepts?
Describes strategies for setting up and solving proportions that show a strong understanding of the concepts?
Poster Presentation
Poster lacks both organization and required information?
Poster lacks organization but includes most of the required information?
Organized poster with all required information?
Creative, neat, organized poster with all required information, at least 8 ingredients, typed, with pictures or drawings?
Total Points
= _____
Total possible points
50
Extra Credit- 5 points (10%) added to final grade of project Adapted from EDC, 2002 ? Buyer Beware
DUE DATE: October 24, 2014
Name:______________________________________
Ratios & Proportions Project
Rubric for Recipe Project
Using Proportions
1 Fails to use proportions to increase a recipe?
4 Set up proportions that are incorrect for increasing a recipe?
7 Correctly set up proportions to increase a recipe with one minor error?
10 Correctly set up proportions to increase a recipe?
Using Cross Products or Equal Ratios
Increasing A Recipe
Fails to use cross products or equal ratios to solve proportions?
Includes a significantly flawed calculation of the amounts needed to increase a recipe? Fails to use
rounding of
measurements
Use cross products or equal ratios inaccurately to solve proportions?
Includes a calculation of the amounts needed to increase a recipe that contains minor errors? Inaccurately rounded most measurements?
Reasonably use cross products or equal ratios to solve proportions? (No more than one minor error ) Includes a reasonable calculation of the amounts needed to increase a recipe? Rounded to nearest half (No more than one minor error )
Demonstrate the ability to use cross products or equal ratios efficiently and accurately to solve proportions?
Includes an accurate and complete calculation of the amounts needed to increase a recipe? Correctly rounded measurements to nearest half.
correctly
Conceptual Understanding
Describes strategies for setting up and solving proportions that shows no understanding of the concepts?
Describes strategies for setting up and solving proportions that shows some understanding of the concepts?
Describes strategies for setting up and solving proportions that show a good understanding of the concepts?
Describes strategies for setting up and solving proportions that show a strong understanding of the concepts?
Poster Presentation
Poster lacks both organization and required information?
Poster lacks organization but includes most of the required information?
Organized poster with all required information?
Creative, neat, organized poster with all required information, at least 8 ingredients, typed, with pictures or drawings?
Total Points
= _____
Total possible points
50
Extra Credit- ______ 5 points (10%) added to final grade of project
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