Lesson Plan
Baking Math Adventure Plan
Students will be able to apply addition and subtraction strategies to solve real-world problems involving quantities of baked goods, specifically cookies.
Understanding how to add and subtract in practical scenarios helps students build essential problem-solving skills and see the relevance of math in their daily lives, like when sharing treats!
Audience
Elementary School Students
Time
45 minutes
Approach
Hands-on problem solving and interactive discussion.
Materials
Whiteboard or projector, Cookie Count Presentation, Cookie Jar Calculations Activity, Cookie Math Worksheet, Cookie Math Answer Key, and Cookie Cool Down
Prep
Prepare Materials
15 minutes
- Review the Baking Math Adventure Plan and all linked materials: Cookie Count Presentation, Cookie Jar Calculations Activity, Cookie Math Worksheet, Cookie Math Answer Key, and Cookie Cool Down.
- Ensure projector or whiteboard is ready for the Cookie Count Presentation.
- Print copies of the Cookie Jar Calculations Activity and Cookie Math Worksheet for each student.
- Have pencils or markers available for students.
Step 1
Warm-up: Cookie Brainstorm
5 minutes
- Begin by asking students: "Who loves cookies? What are some of your favorite kinds of cookies?" Allow a few students to share.
- Introduce the idea that today, we'll be using math to help us with a cookie adventure!
Step 2
Introduction to Cookie Math
10 minutes
- Present the Cookie Count Presentation slides 1-3.
- Explain that addition means 'putting together' or 'finding the total', and subtraction means 'taking away' or 'finding the difference'.
- Use simple examples related to cookies to illustrate these concepts.
Step 3
Activity: Cookie Jar Calculations
15 minutes
- Distribute the Cookie Jar Calculations Activity.
- Explain the rules: Students will work in pairs or small groups to solve cookie-themed addition and subtraction problems.
- Circulate around the room to provide support and answer questions. Encourage students to explain their thinking.
Step 4
Worksheet: Sweet Sums and Differences
10 minutes
- Hand out the Cookie Math Worksheet.
- Instruct students to complete the worksheet independently, applying what they learned from the presentation and activity.
- Remind them to show their work.
Step 5
Cool-down: One Last Cookie Question
5 minutes
- Collect the worksheets.
- Present the Cookie Cool Down question.
- Have students write their answer on an exit ticket or share orally.
- Briefly review one or two answers as a class to reinforce the day's learning.
use Lenny to create lessons.
No credit card needed
Slide Deck
How Many Cookies Did We Bake?
Let's go on a delicious math adventure!
Welcome students and get them excited about cookies and math! Ask a few students what their favorite cookies are.
Adding More Cookies!
What is Addition?
- Putting together groups
- Finding the total amount
Imagine you have 2 chocolate chip cookies and your friend gives you 3 more. How many do you have in all?
2 + 3 = ?
Introduce addition using a simple cookie example. Emphasize 'putting together' and 'total'.
Cookies Disappearing?
What is Subtraction?
- Taking away a part
- Finding the difference between amounts
You baked 5 yummy cookies, but you ate 1! How many are left?
5 - 1 = ?
Introduce subtraction using another cookie example. Emphasize 'taking away' and 'difference'.
Activity
Cookie Jar Calculations
Work with your group to solve these delicious cookie problems! Show your work in the space provided.
Problem 1
Miss Lily baked 7 sugar cookies. Her neighbor gave her 5 more cookies. How many cookies does Miss Lily have now?
Problem 2
There were 12 chocolate chip cookies on a plate. Students ate 6 of them during snack time. How many chocolate chip cookies are left?
Problem 3
Tommy has 3 oatmeal cookies. Sarah has 4 peanut butter cookies. David has 2 snickerdoodle cookies. How many cookies do they have altogether?
Problem 4
The bakery made 15 gingerbread cookies. They sold 8 of them. How many gingerbread cookies are still at the bakery?
Challenge Problem
Mom baked a big batch of cookies. She put 9 cookies in one jar and 7 cookies in another jar. Then, her children ate 3 cookies from the first jar and 2 cookies from the second jar. How many cookies are left in total?
Worksheet
Cookie Math Worksheet
Solve each cookie problem. Show your work!
1. Addition Adventures
-
Maria baked 4 sugar cookies and 5 chocolate cookies. How many cookies did she bake in total?
-
Dad brought home a box with 6 cookies. Grandma added 3 more cookies to the box. How many cookies are in the box now?
2. Subtraction Solutions
-
There were 10 cookies on a tray. Your friend ate 2 cookies. How many cookies are left on the tray?
-
You had 8 cookies, but you gave 4 to your teacher. How many cookies do you have now?
3. Mixed Cookie Problems
-
A baker made 11 cookies. He put 7 in a bag to sell. How many cookies were not put in a bag?
-
At a party, there were 5 vanilla cookies and 6 chocolate cookies. If 3 cookies were eaten, how many are left?
Answer Key
Cookie Math Answer Key
Here are the solutions to the Cookie Math Worksheet!
1. Addition Adventures
-
Maria baked 4 sugar cookies and 5 chocolate cookies. How many cookies did she bake in total?
- Thought Process: This is an addition problem because we are putting two groups of cookies together to find the total.
- Equation: 4 + 5 = 9
- Answer: Maria baked 9 cookies in total.
-
Dad brought home a box with 6 cookies. Grandma added 3 more cookies to the box. How many cookies are in the box now?
- Thought Process: Again, this is addition because more cookies are being added to the existing amount.
- Equation: 6 + 3 = 9
- Answer: There are 9 cookies in the box now.
2. Subtraction Solutions
-
There were 10 cookies on a tray. Your friend ate 2 cookies. How many cookies are left on the tray?
- Thought Process: This is a subtraction problem because some cookies were taken away from the original amount.
- Equation: 10 - 2 = 8
- Answer: There are 8 cookies left on the tray.
-
You had 8 cookies, but you gave 4 to your teacher. How many cookies do you have now?
- Thought Process: This is also subtraction because cookies were given away, reducing the total.
- Equation: 8 - 4 = 4
- Answer: You have 4 cookies now.
3. Mixed Cookie Problems
-
A baker made 11 cookies. He put 7 in a bag to sell. How many cookies were not put in a bag?
- Thought Process: We start with a total number of cookies and a portion were separated (put in a bag). We need to find the remaining portion, so this is subtraction.
- Equation: 11 - 7 = 4
- Answer: 4 cookies were not put in a bag.
-
At a party, there were 5 vanilla cookies and 6 chocolate cookies. If 3 cookies were eaten, how many are left?
- Thought Process: First, find the total number of cookies by adding the vanilla and chocolate cookies. Then, subtract the number of cookies eaten from that total.
- Equation 1 (Total): 5 + 6 = 11
- Equation 2 (Remaining): 11 - 3 = 8
- Answer: There are 8 cookies left.
Cool Down
Cookie Cool Down
Think about what we learned today about adding and subtracting cookies.
Question
If you have 3 cookies and bake 4 more, how many cookies do you have now? Explain how you know.