Baking with Fractions

Introduction

Your help is needed!

 

You are the math expert! 

Mrs. Smith needs to make desserts for a birthday party. There will be 90 people at the party, 

but all of her recipes only make enough dessert for 30 people. 

She doesn't know how to make her recipes big enough to feed 90 people.

She needs your math expertise!

 

 

Task

You and your partner are going to convert the fractions in the recipes so that Mrs. Smith can make different types of desserts for 90 people.  

Accuracy is important because these desserts can't explode in the oven or become a liquid mess.

 

When you take your time and use your math skills, you can have a successful recipe conversion!

 

Let's get started!

Process

RESOURCES:

 

Before you begin the conversion process for Mrs. Smith, let's review and practice adding fractions:

 

1. Visit Math is Fun to review how to add fractions https://www.mathsisfun.com/fractions_addition.html

2. Watch the following video: https://www.khanacademy.org/math/arithmetic/fraction-arithmetic/arith-review-adding-subtracting-frac/v/adding-fractions-with-like-denominators

 

3. Shoot fruit to find the answers of adding fractions with this online game: http://www.sheppardsoftware.com/mathgames/fractions/FruitShootFractionsAddition.htm

  • Each partner will play Level 1a. Together, you can play Level 2a for a challenge.

4. Test yourself on Study Jams:http://studyjams.scholastic.com/studyjams/jams/math/fractions/add-sub-common-denom.htm; 

 

 

Now for the PROCESS...

Here's what you will do. 

 

Dessert 1- Chocolate Chip Cookies

1. Look up the recipe by clicking this link:https://www.verybestbaking.com/recipes/18476/original-nestle-toll-house-chocolate-chip-cookies/

2 Calculate the ingredients so that it is 3x the amount.

   **Each partner will calculate his/her own conversions. Compare the results to check for accuracy.

3. On a recipe card, re-write the recipe so that Mrs. Smith can easily read all that she will need.

 

Dessert 2- Vanilla Cupcakes

1. Look up the recipe by clicking this link:https://www.marthastewart.com/332268/vanilla-cupcakes;

2 Calculate the ingredients so that it is 3x the amount.

  **Each partner will calculate his/her own conversions. Compare the results to check for accuracy.

3. On a recipe card, re-write the recipe so that Mrs. Smith can easily read all that she will need.

 

Dessert 3- Birthday cake

1. Look up the recipe by clicking this link: https://www.foodnetwork.com/recipes/ree-drummond/big-chocolate-birthday-cake-recipe-2042432

2 Calculate the ingredients so that it is 3x the amount.

  **Each partner will calculate his/her own conversions. Compare the results to check for accuracy.

3. On a recipe card, re-write the recipe so that Mrs. Smith can easily read all that she will need.

 

***Challenge:

1. Think of one more dessert and find its recipe that you can give to Mrs. Smith as another suggestion for a dessert.

2. Make sure that the calculation for the recipe can feed 90 people.

  **Each partner will calculate his/her own conversions. Compare the results to check for accuracy.

3. Write the recipe and the appropriate ingredients on a recipe card. 

 

 

 

Evaluation

After completing the recipe cards, you will turn them in as a team. Each team member will write a reflection based off of their experience on this assignment. 

*Be sure you look at the rubric to see the expectations of the recipe cards & the reflection.

 

Rubric

# 1 Point 2 Points 3 Points 4 Points Score
Working Collaboratively with partner There was no collaboration. One person did all the work. There was little collaboration. One person did most of the work, while the other person's participation was very minimal. There was some collaboration. Two people clearly worked together to complete the activity, but one person was mostly "in charge" of who did what. Collaboration was great. Both students put in equal opinions, effort, and work. 30%
Recipe Conversions None of the recipes were converted correctly. There were many errors in the conversion of the recipes. There were some errors in the conversion of the recipes. There were no errors in the conversion of the recipe. 50%
Presentation of Recipe Cards The presentation of the recipe cards were not organized, neatly done, or creatively presented. The presentation of the recipe cards had some organization, neatness, and creativity. The presentation of the recipe cards had good organization, neatness, and creativity. The presentation of the recipe cards had great organization, neatness, and creativity. 10%
Self-Reflection Brief reflection with not a lot of detail. Reflection had some good thoughts and demonstrated some reflective thinking. Reflection had great thoughts and demonstrated a lot of reflective thinking, but lacked some parts of a detailed and thoughtful reflection Detailed and thoughtful reflection. Included the following: -evaluation of collaboration with partner - one thing the student would do differently if they had to do it all over again -how this experience contributed to the student's understanding of self, others, and the world 10%

Total Score: 100%

Conclusion

As you have just experienced, it is safe to say that fractions don't just show up in our math textbooks, but are apart of our daily lives. You worked on a scenario that could be a real life experience for you some day in the future. When you are baking (or even cooking), you will be using fractions. These fractions will be present whether you are increasing the size of the recipe or just simply following a recipe. Knowing about fractions and how to use them is a beneficial and important skill that you will use for the rest of your lives. 

 

Here are some more websites that you can visit to further your learning of fractions:

 

-Mathman:http://www.sheppardsoftware.com/mathgames/fractions/mathman_add_subtract_fractions.htm

 

-Visual fractions:http://www.visualfractions.com/Games.htm

 

-Jeopardy:http://www.math-play.com/Fractions-Jeopardy/fractions-jeopardy.html

 

 

 

Teacher Page

This webquest was created to make learning about fractions fun and realistic. Many times, students don't make the connection from what they are learning to real life scenarios. This webquest will take at least 4 hours, but can be done over a period of days. 

Some things to think about:

-Before you let students work in pairs to complete this webquest, make sure that you teach them what it looks like to work in pairs.

-Make sure that you are checking in on them to ensure that they are on task and working together collaboratively.

-Even though the students are practicing adding fractions, encourage them to explore multiplying and simplifying.

 

Standards

4.NF.3

Understand a fraction a/b with a > 1 as a sum of fractions 1/b.

4.NF.4

Apply and extend previous understandings of multiplication to multiply a fraction by a whole number.

 

Created by:

Ashley Brider

Karrington Taylor