Portion Patrol Teacher Guide Portion Patrol Guide
Teacher-Facing Resource • Lesson 1
Duration
50 Min
Instructional Objectives
Students will differentiate between a "serving size" (standardized) and a "portion size" (individual choice).
Students will calculate total nutrients in multi-serving packages using multiplication.
Students will analyze how marketing influence consumption habits through packaging design.
Lesson Flow
0-10 MIN
The "Small Bag" Trap (Hook)
Hold up a standard grab-and-go bag of chips (typically 2-2.5 servings).
Ask students to guess how many calories are in the bag. Most will guess the calories per serving. Reveal that the bag contains multiple servings. Calculate the "Real Total" on the board.
10-25 MIN
Navigating the Panel
Use the Portion Patrol Slides to walk through the top of the Nutrition Facts panel. Focus specifically on "Servings Per Container." Explain that all numbers below that line apply only to one serving.
Key Concept: Portion = What you put on your plate. Serving = The standardized unit of measurement.
25-45 MIN
The Multiplication Myth Worksheet
Students work through the calculation worksheet. Provide real empty food packages or high-resolution label images for the "Real World Scan" section.
45-50 MIN
Reflection
Ask: "Why might a manufacturer choose to list a small serving size for a food that most people eat in one sitting?"
Teacher Prep Checklist
Grab-and-go chip bag for hook
Print "The Multiplication Myth"
Set up Portion Patrol Slides
Collect empty snack containers
Portion Patrol Slides Label Detective Agency
Portion Patrol
Case File #1: The Multiplication Myth
The "Grab & Go" Trap
1 Bag of Chips
Looks like 1 portion, right?
Wait!
Most small bags actually contain 2 or 3 servings inside.
The Math Problem:
If 1 serving = 150 calories, and there are 2.5 servings... how many calories did you actually eat?
Serving vs. Portion
Serving Size
A standardized amount of food. It is what the manufacturer uses to measure nutrients.
Portion Size
The amount of food YOU choose to eat at one time.
THEY ARE OFTEN NOT THE SAME!
Where to Look?
Nutrition Facts
8 servings per container
Serving size 2/3 cup (55g)
Amount per serving
Calories 230
(Simplified for demonstration)
1
Check Servings Per Container first!
2
Multiply the nutrients by the number of servings you eat.
"If you eat the whole box, you're eating 8 servings. That means 8 x 230 = 1,840 calories!"
Detective Mission
Time to put your math skills to work. Use your Multiplication Myth worksheet to crack the code of these labels.
Calculate
Investigate
Verify
Serving Size Math Worksheet Label Detective Agency
Case File: The Multiplication Myth
Agent Name:
Date:
Part 1: Vocabulary Audit
Match the term to its correct nutritional identity.
1
Serving Size
2
Portion Size
The amount of food you choose to eat in one sitting (e.g., eating the whole bag of chips).
The standardized measurement shown on the Nutrition Facts panel (e.g., 15 chips or 2/3 cup).
Part 2: Math Surveillance
Manufacturers often divide one container into multiple servings. Calculate the TRUE totals for the items below.
Item A: "Big Gulp" Energy Drink
Multi-Serving Container
Servings Per Container
2.5
Calories Per Serving
140
Sugar Per Serving
32g
If you drink the whole bottle, what are your totals?
Total Calories:
Total Sugar:
Item B: "Party Size" Frozen Pizza
Multi-Serving Container
Servings Per Container
3
Sodium Per Serving
650mg
Total Fat Per Serving
12g
If you eat the entire pizza, what are your totals?
Total Sodium:
Total Fat:
Part 3: Field Investigation
Choose a food item provided by your teacher (or use a label image) and analyze it below.
Product Name:
Servings Per Container:
One Serving Size:
Show Your Math: Total Calories in Package
The Final Count: calories
Property of Label Detective Agency Subject Level: Grade 8 Nutrition Case #1-Portion-Patrol
Percent Power Teacher Guide The 5/20 Rule Guide
Teacher-Facing Resource • Lesson 2
Duration
50 Min
Instructional Objectives
Students will interpret Percent Daily Value (%DV) as a tool for quick nutritional assessment.
Students will apply the "5/20 Rule" (5% is low, 20% is high) to categorize nutrients.
Students will evaluate food items based on whether they are "high" in beneficial nutrients or "low" in nutrients to limit.
Lesson Flow
0-10 MIN
The Quick-Sort Challenge (Hook)
Show two contrasting labels (e.g., Spinach vs. Potato Chips). Ask: "Which one is 'high' in fiber? Which is 'low' in sodium?"
Guide students to look at the % column, not the gram column, to see how percentages make comparing different foods easier.
10-25 MIN
Decoding %DV and the 5/20 Rule
Use the Percent Power Slides . Explain that %DV is based on a 2,000-calorie diet. Introduce the 5/20 shortcut.
The Rule:
5% or less is LOW (Good for things to limit, like sodium).20% or more is HIGH (Good for things we want, like fiber/vitamins).
25-45 MIN
Label Scavenger Hunt
Students use the Label Scavenger Hunt Worksheet to find foods in a provided "Label Gallery" (printouts of various food labels) that fit the "High" and "Low" categories.
45-50 MIN
Debrief
Ask: "Does a food being 'high' in a nutrient always make it healthy?" (Discussion on high sodium vs. high protein).
Professional Pointers
Note on 2,000 Calories: Remind students that individual calorie needs vary by age and activity level, but the 2,000-calorie standard on labels allows for consistent comparison.
Focus Nutrients: Encourage students to look for "High" (20%+) in Fiber, Vitamin D, Calcium, Iron, and Potassium. Encourage "Low" (5%-) in Saturated Fat, Sodium, and Added Sugars.
Percent Power Slides Label Detective Agency
Percent Power
Mastering the 5/20 Rule
Case File #2
What is % Daily Value?
The %DV tells you how much a nutrient in a serving of food contributes to a total daily diet.
"Think of it as a score. It helps you see if a food is high or low in a nutrient without having to know exactly how many grams or milligrams you need."
2,000
Calories
(The Standard Benchmark)
The 5 / 20 Rule
5%
or less
LOW
Use this for nutrients you want to LIMIT:
Sodium
Saturated Fat
Added Sugars
20%
or more
HIGH
Use this for nutrients you want MORE of:
Dietary Fiber
Vitamin D / Iron
Calcium / Potassium
Detective Practice
Product A
Sodium 32%
HIGH! (Not ideal)
Product B
Fiber 22%
HIGH! (Great source)
"Quick check: 5 is low, 20 is high. Simple!"
Scavenger Hunt
You are cleared for fieldwork. Use the 5/20 Rule to hunt down the best (and worst) nutrients in our label gallery.
Find 2 "High" Fiber foods
Find 2 "Low" Sodium foods
Find 1 "High" Sugar food
Label Scavenger Hunt Worksheet Label Detective Agency
Operation: Label Scavenger Hunt
Agent Name:
Date:
The 5 / 20 Shortcut
Memorize This Rule
5%
is LOW
20%
is HIGH
Part 1: The Nutritional Hunt
Use the food labels provided in the gallery to find products that match the criteria below.
Mission Objective Food Product Found Actual %DV Rating (High/Low) Find a "LOW" Sodium food
(Look for 5% or less)
| | | |
|
Find a "HIGH" Fiber food
(Look for 20% or more)
| | | |
|
Find a food "HIGH" in Saturated Fat
(Look for 20% or more)
| | | |
|
Find a "HIGH" Vitamin/Mineral source
(Vit D, Calcium, Iron, etc.)
| | | |
|
Find a "LOW" Sugar food
(Look for 5% or less)
| | | |
Part 2: The Verdict
Choose ONE food from your hunt. Based ONLY on the 5/20 Rule, would you recommend this food as a "daily staple" (something to eat often) or an "occasional treat"? Explain using %DV data.
Product Chosen:
Evidence & Verdict:
Property of Label Detective Agency Subject Level: Grade 8 Nutrition Case #2-DV-Hunt
Sugar Sleuth Teacher Guide Sugar Stealth Guide
Teacher-Facing Resource • Lesson 3
Duration
50 Min
Instructional Objectives
Students will explain how ingredients are ordered on a food label (by weight).
Students will identify common aliases for sugar in ingredient lists (e.g., maltodextrin, high fructose corn syrup).
Students will evaluate the health impact of hidden sugars in "seemingly healthy" foods like yogurt or granola.
Lesson Flow
0-10 MIN
The Alias Game (Hook)
Display 5 names: Dextrose, Barley Malt, Nectar, Sucrose, Glucose. Ask: "What do these all have in common?"
Reveal that they are all SUGAR . Discuss why companies use different names (often to split sugar into smaller weights so they appear lower on the list).
10-25 MIN
The Hierarchy of Weight
Use the Sugar Stealth Slides . Teach students that the first three ingredients usually make up the bulk of the product. If sugar is in the top three, it's a high-sugar food regardless of front-of-pack claims.
Introduce the "Ends in -ose" rule: Maltose, Dextrose, Fructose, etc.
25-45 MIN
Sugar Alias Investigation
Students use the Sugar Alias Activity Sheet to scan various ingredient lists and highlight every form of sugar they find. They will count how many different types of sugar appear in a single product.
45-50 MIN
Reflective Exit Ticket
Ask: "Why might a manufacturer use 4 different types of sugar instead of just one?" (Splitting strategy).
Detective Vocabulary
Ingredient Hierarchy:
The order of ingredients from most weight to least weight.
Sugar Splitting:
Using multiple sweeteners to hide how much total sugar is in a product.
Sugar Sleuth Slides Label Detective Agency
Sugar Stealth
Decoding Hidden Sweeteners
The Hierarchy of Weight
Ingredients are listed in order of WEIGHT.
The ingredient that weighs the most is listed first. The one that weighs the least is last.
"If sugar is in the first 3 ingredients, you're eating a SUGAR-BOMB!"
Example Label
1. Whole Grain Oats, 2. Sugar, 3. Corn Syrup, 4. Canola Oil, 5. Salt, 6. Natural Flavor...
2 of the Top 3 are SUGAR!
Sugar's Many Identities
The "-ose" Gang
Dextrose
Fructose
Glucose
Maltose
Sucrose
The Syrups
HFCS
Agave Nectar
Rice Syrup
Barley Malt
Cane Juice
The "Natural" Ones
Honey
Molasses
Fruit Juice
Maple Syrup
Coconut Sugar
There are over 60 ways to hide sugar on a label!
Detective Secret: Sugar Splitting
The Split
Companies use 3 or 4 different sweeteners in small amounts instead of 1 large amount of sugar.
"This makes each sweetener weigh less, so they all appear further down the list. It tricks you into thinking the food isn't high in sugar!"
The Sugar Audit
Your mission is to find and highlight every form of sugar in your Alias Archive . Don't let them hide!
Highlight
Count
Expose
Sugar Alias Activity Sheet Label Detective Agency
Archive: The Sugar Aliases
Agent Name:
Date:
The Decoder Key: Common Sugar Aliases
Dextrose Fructose Glucose Sucrose Maltodextrin Barley Malt Rice Syrup Cane Juice Agave Nectar Molasses Honey Corn Syrup Fruit Juice Maple Syrup Invert Sugar Crystalline Fructose
Lab Test #1: "Fit-n-Lean" Granola Bar
Ingredient List:
Whole Grain Oats, Corn Syrup, Sugar, Rice Flour, Fructose, Molasses, Vegetable Oil, Honey, Salt, Soy Lecithin, Natural Flavor, Barley Malt Extract.
1. Use a highlighter to mark every sugar alias in the list above.
How many aliases did you find?
2. What is the FIRST ingredient listed?
Lab Test #2: "Fruit-Blast" Greek Yogurt
Ingredient List:
Cultured Grade A Milk, Cane Sugar, Water, Strawberries, Modified Food Starch, Fruit Juice Concentrate, Agave Nectar, Natural Flavors, Pectin, Citric Acid.
1. Use a highlighter to mark every sugar alias in the list above.
How many aliases did you find?
2. Is sugar in the TOP THREE ingredients?
YES
NO
Detective Intelligence: Why Split?
Explain the concept of "Sugar Splitting." Why would the manufacturer of the Granola Bar use 6 different types of sugar instead of just putting "Sugar" at the very front of the list?
Property of Label Detective Agency Subject Level: Grade 8 Nutrition Case #3-Sugar-Stealth
Additive Audit Teacher Guide Additive Audit Guide
Teacher-Facing Resource • Lesson 4
Duration
50 Min
Instructional Objectives
Students will identify the "Big 9" common allergens required to be listed on food labels.
Students will explain the purpose of common food additives (preservatives, colors, thickeners).
Students will evaluate food labels for safety based on hypothetical dietary restrictions or allergies.
Lesson Flow
0-10 MIN
The "Contains" Clause (Hook)
Show a label with a clear "CONTAINS: MILK, SOY" statement. Ask: "Why is this text separate from the main ingredient list?"
Explain that for millions of people, reading this small box is a matter of life and death. Introduce the concept of the "Big 9" allergens.
10-25 MIN
Allergens and Additives
Use the Additive Audit Slides . List the Big 9 allergens (Milk, Eggs, Fish, Shellfish, Tree Nuts, Peanuts, Wheat, Soy, Sesame). Then, discuss common additives like Red 40, BHA/BHT, and Guar Gum.
Key Concept: Additives usually serve one of three purposes: Preservation (shelf life), Presentation (color/texture), or Palatability (taste).
25-45 MIN
Mystery Label Investigation
Students work on the Mystery Label Investigation Worksheet . They are assigned a "Client" with a specific allergy or additive concern and must audit 3 mystery labels to find a safe option.
45-50 MIN
Debrief
Discuss: "Should companies be allowed to use artificial dyes that have no nutritional value?" (Class debate starter).
Teacher Checklist
Set up Additive Audit Slides
Print Mystery Investigation Worksheet
Collect 'Mystery Labels' (or use worksheet images)
Optional: Find Red 40 dye research snippets
Additive Audit Slides Label Detective Agency
Additive Audit
Allergens & Artificial Agents
The Big 9
The FDA requires the most common food allergens to be clearly labeled.
"Look for the CONTAINS statement at the bottom of the ingredient list."
Milk
Eggs
Fish
Shellfish
Tree Nuts
Peanuts
Wheat
Soy
Sesame
Why use Additives?
Preservation
Stops food from spoiling or growing mold too fast. (Ex: BHA, Sodium Nitrite)
Presentation
Makes food look bright and consistent. (Ex: Red 40, Titanium Dioxide)
Palatability
Improves the texture and "mouthfeel" of food. (Ex: Guar Gum, Xanthan Gum)
Detective Work: Is it safe?
Client Profile: JESSICA
Allergic to: PEANUTS and WHEAT.
Ingredient Check:
Tapioca Starch, Whole Wheat Flour, Sugar, Peanut Oil, Salt...
STOP! UNSAFE.
"Even if a food says 'Gluten Free' on the front, always audit the back to be 100% sure."
Mystery Label Audit
Time to protect your clients. Audit the mystery labels and determine which foods are safe for their specific needs.
Audit
Alert
Approve
Mystery Label Investigation Worksheet Label Detective Agency
Case Study: Mystery Label Investigation
Agent Name:
Date:
Target Client: Agent "C"
Agent C has severe DAIRY (MILK) and SOY allergies. Additionally, they must avoid ARTIFICIAL DYES (like Red 40 or Yellow 5). Your mission is to audit the labels below and find a safe snack for them.
Label #1: "Crunchy Taco Rings"
Audit Status:
Ingredient List:
Corn Meal, Vegetable Oil, Whey, Salt, Cheddar Cheese (Milk, Cheese Cultures, Salt, Enzymes), Maltodextrin, Tomato Powder, Onion Powder, Disodium Phosphate, Yellow 6, Red 40, Yellow 5, Natural Flavors.
CONTAINS: MILK
Risk Assessment:
Found Milk?
Found Soy?
Found Dyes?
VERDICT: UNSAFE
Label #2: "Coco-Fudge Bars"
Audit Status:
Ingredient List:
Dark Chocolate (Cocoa Mass, Sugar, Cocoa Butter), Soy Lecithin, Natural Vanilla, Rice Syrup, Coconut Milk (Coconut, Water), Guar Gum, Sea Salt.
CONTAINS: SOY, COCONUT
Risk Assessment:
Found Milk?
Found Soy?
Found Dyes?
VERDICT: UNSAFE
Label #3: "Harvest Fruit Bites"
Audit Status:
Ingredient List:
Dried Apples, Dried Cranberries, Sunflower Seeds, Pumpkin Seeds, Agave Nectar, Beet Juice (For Color), Sea Salt, Citric Acid.
Free from the Big 9 allergens.
Risk Assessment:
Found Milk?
Found Soy?
Found Dyes?
VERDICT: SAFE
Property of Label Detective Agency Subject Level: Grade 8 Nutrition Case #4-Additive-Audit
Halo Showdown Teacher Guide Health Halo Showdown Guide
Teacher-Facing Resource • Lesson 5
Duration
50 Min
Performance Objectives
Students will synthesize all previous learning (serving sizes, 5/20 rule, ingredients) to conduct a comparative analysis.
Students will critique "Health Halos"—marketing claims that make a product seem healthier than its label suggests.
Students will produce a final evidence-based recommendation comparing two similar products.
Final Mission Flow
0-10 MIN
The Halo Effect (Hook)
Show a box of "Organic, Non-GMO, Gluten-Free" cookies next to a box of standard Oreos. Ask: "Which one is better for you?"
Reveal that the "organic" cookies may have more sugar and calories per serving. Define "Health Halo" as marketing that blinds us to the nutrition facts.
10-15 MIN
Project Launch
Introduce the final mission using the Halo Showdown Slides . Explain that they will be comparing a "Name Brand" snack to a "Healthy Alternative" to see if the claims hold up.
15-45 MIN
Final Case Analysis
Students use the Showdown Project Sheet . They should have two labels to compare (provide a digital gallery or physical labels). They must complete the 4-point audit: Math, %DV, Ingredients, and Marketing.
45-50 MIN
Detective Debrief
Share findings. Ask: "What was the most surprising discovery today?"
Assessment Rubric
Criteria Exceeds (5) Meets (3) Calculation Total nutrients for container are 100% accurate. Calculations are mostly accurate. 5/20 Application Uses rule correctly to justify ranking. Identifies high/low correctly. Ingredient Audit Finds all hidden sugars/additives. Finds primary sugar sources.
Halo Showdown Slides Label Detective Agency
Halo Showdown
Marketing vs. Reality
The Health Halo
A Health Halo is the "aura" of health that surrounds a food because of marketing claims.
"When we see words like 'Natural,' 'Organic,' or 'Plant-Based,' we often assume the food is low in sugar and fat... even if it isn't!"
Claims vs. Label Facts
The Marketing (Front)
"All Natural Ingredients"
"No High Fructose Corn Syrup"
"Gluten Free & Vegan"
The Reality (Back)
24g of Added Sugar (48%DV)
High in Saturated Fat (30%DV)
Sugar is the #2 Ingredient
The Showdown Mission
1
Select two similar products
2
Compare their Nutrition Facts
3
Expose hidden sugars & additives
4
Write your recommendation
"Is the 'Healthy' version actually healthier? Let the data decide."
Detective Graduation
This is your final case file. Complete the Health Halo Showdown to prove you have mastered the skills of a Label Detective.
Case Closed in 40 Minutes!
Halo Showdown Project Sheet Label Detective Agency
Final Mission: The Health Halo Showdown
Agent Name:
Date:
YOUR MISSION: Compare a "Name Brand" product to its "Healthy Alternative." Use your detective skills to see if the healthy claims are backed up by the label data.
Phase 1: The Nutritional Showdown
Nutrient Data Product A: (Name Brand) Product B: ("Healthy" Alt) Serving Size / Total Servings Calories (Total Container) Sodium (% Daily Value) Added Sugar (Grams & %DV) Dietary Fiber (% Daily Value) #1 & #2 Ingredients
Phase 2: The Halo Audit
List the specific claims found on the FRONT of Product B.
The Reality Check:
Does the label support the marketing claims listed to the left? Why or why not?
Final Verdict: Case Recommendation
Based on your analysis, which product would you recommend as a better choice for someone trying to follow a healthy diet? Support your decision with three specific pieces of data from your audit.
Winning Product:
Supporting Data Points:
Property of Label Detective Agency Subject Level: Grade 8 Nutrition Final Assessment: Halo-Showdown
