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do step 3 in the doc please.
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Unit 4 Discussion: The Cost of Junk Food
Purpose
Picture yourself at work in the break room or hanging out with friends. Hey! Somebody brought snacks! Maybe it’s a
cake or a plate of cookies or several bags of chips. Do you dive right in, or do you take a minute to think about how those
extra calories could turn into body fat and increase your weight.
You know you can burn those extra calories at the gym or with some other physical exercise. But, how many minutes will
it actually take to burn off those extra calories?
The purpose of this activity is for you to consider the “cost” associated with eating junk food – extra calories or extra
exercise. You will learn how to determine the amount of physical activity needed to burn calories so that you can make
informed decisions when you encounter those unexpected treats.
This can be a very sensitive subject for some students. If you are struggling with this content, please let me know.
Lesson Outcomes
•
•
•
Identify the calories found within common junk food (CLO 3)
Estimate how long it would take to burn off calories during exercise (CL) 3, 7)
Compare the number of calories burned by different exercises (CLO 3, 7)
Steps to Complete the Task
Step 1: Research
1. Think of your favorite junk food (this is the fun part!).
a. Make sure you pick a food that you know is not healthy. This could be something you treat yourself with
on occasion, or a food you only eat in your dreams – you choose!
b. Be specific on the amount of the junk food you will pretend to eat/drink (e.g. 32 fluid ounces of a
chocolate milkshake, 1 snickers bar (44 g/ 1.56 oz)
2. Research online for the nutrition facts of that food item to locate the total number of calories which come from
that food.
a. Record the name of the site & the URL where you found the information.
Step 2: Analyze and Evaluate
1. Think of your favorite way of being physically active (this should be fun too!).
a. You should select a fun method of exercise (an activity which increases your heart rate) and ideally
something that you already or would actually do.
2. In your Cronometer profile, select the “Add Exercise” link.
a. Find your desired exercise. Use trial and error to find the number of minutes it would take to burn the
number of calories in your favorite junk food.
b. Or, you can use math to determine the number of minutes needed.
Example: My junk food is 1 slice of chocolate mousse cheesecake from the Cheesecake Factory. It has 1210
calories.
Reference: The Cheesecake Factory Nutritional Guide (PDF)
The exercise I selected was rock climbing. According to Cronometer, for me this burns 225 kcal per 30 minutes.
Obviously, I need to spend more than 30 minutes rock climbing to burn off all the cheesecake! I set up a basic
math problem to determine the number of minutes I need:
225 kcal = 1210 kcal
30 min
x
(1210) (30) = 225 x
36300 = 225 x
36300 = x
225
x = 161
Therefore, if I ate 1 slice of chocolate mousse cheesecake from the Cheesecake Factory I would have to spend
161 minutes or 2 hours and 41 minutes rock climbing to burn off the calories from the food.
Step 3: Analyze & Explain
1. Write a 100-200 word paragraph that includes the following
a. A description of the process you followed to determine the number of minutes you would need to
exercise. (The example above is a description of a process.)
b. Identify the source of the calorie information (name of website and URL).
c. A clear statement of the number of minutes of your exercise you would need to burn off the junk food
you selected.
d. An explanation of what you learned in this activity and/or how it will affect your junk food choices in the
future.
e. Write your paragraph on a Word document. Save the document to your computer as a back-up copy.
Step 4: The Discussion
1. Post your paragraph in the Unit 4 DISC: Junk Food.
a. Copy your paragraph from your Word document and paste in the discussion forum.
2. Respond to a minimum of two classmates
a. Take their junk food and your exercise.
b. Determine how many minutes of your exercise would be needed to burn off their junk food.
c. Your responses should be 25 to 50 words.
d. Provide a thoughtful response in complete sentences.
Criteria for Success
To be successful, your discussion posts should
1. Provide accurate information about calorie count and exercise time.
2. Be written in your “own voice.” The posts should sound “like you” not like the Internet.
3. Use academic English (no slang or texting language) with minimal errors in grammar, punctuation, and spelling.
(Hint: read your responses out loud before posting).
4. Stay within the word count range for the original response and response to peers.
5. Include thoughtful responses to two of your peers.
a. You can include a description of why you selected to evaluate their junk food.
If your posts meet these criteria, then you will earn points for this discussion as follows:
Original response
10 points
Response to peers
2.5 points each
Total Points Possible
15 points
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