Making Healthy Food Choices

Lesson Overview

Grade Levels: 2nd Grade and 6th Grade
Subject: Science
Duration: 100 minutes
Theme: Processed foods, sugars, and decision-making using real-life food labels
Curriculum Alignment:

• Grade 2: Next Generation Science Standards (NGSS) - 2-PS1-1: Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties.
• Grade 6: NGSS - MS-LS1-7: Develop a model to describe how the body's systems work together for energy and growth.

Learning Objectives

By the end of the lesson, students will:

1. Grade 2: Identify foods high in sugar and describe their effects on the body in simple terms.
2. Grade 6: Analyze food labels to evaluate sugar, calorie, and fat content and explain how these nutrients impact long-term health.
3. Practice critical thinking to make healthier food choices.

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Materials Needed

• Variety of empty food packages (e.g., candy bars, cereal, crackers, fruit snacks, granola bars) with nutrition labels intact.
• Laminated blank nutrition labels (for customization).
• Small plastic jars/bags with pre-measured sugar (1 tsp = ~4g) representing the sugar content of each food.
• Measuring cups and water for demonstrations.
• Whiteboard, markers, and timer.
• Worksheets (customized for each grade level).
• Healthy snack options (e.g., assorted fruits, nuts, yogurt).

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Lesson Structure

1. Introduction (15 minutes)

Objective: Warm-up activity to gauge understanding and spark curiosity.

1. Opening Discussion (5 min):

   • Ask questions to both grades, such as:
     • "Who likes sweet snacks? What’s your favorite one?"
     • "Do you think some snacks are healthier than others? Why?"
   • Briefly introduce today’s focus: "Today, we’ll investigate how much sugar is in our favorite foods and learn how to make healthier choices."

2. Quick Demonstration (10 min):

   • Show a can of soda and ask: "How much sugar do you think is in this drink?"
   • Pour the approximate equivalent of sugar (39 grams = 9 teaspoons) into a jar to show students visually.
   • Discuss the impact of excessive sugar on the body:
     • Grade 2: Use simple terms like “sugar gives energy but too much makes us feel tired or sick.”
     • Grade 6: Explain in more detail, like how sugar affects insulin, stored fat, and energy spikes/crashes.

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2. Lab Activity (60 minutes)

Setup (5 minutes):

• Divide the students into two groups of two (one 2nd grader and one 6th grader in each group). Older students will assist younger students, creating a mentorship dynamic.
• Hand out 3-4 empty food packages, laminated labels, sugar jars, and worksheets to each group.

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Step 1: Exploring Sugar (20 minutes)

Objective: Calculate the sugar content level in processed foods using real food labels.

1. Find the Data:

   • Each group will look at the nutrition labels and find the “Sugars” section.
   • Have them calculate: “How many teaspoons of sugar are in the serving size?” (E.g., 12 grams ÷ 4 = 3 teaspoons).

2. Observe Visually:

   • Using the pre-measured sugar jars or teaspoons, students will visually represent sugar levels in the package.
   • Guide 2nd graders to express their thoughts (e.g., “That’s so much sugar!”), while 6th graders should analyze the portion size (e.g., “How many servings are you likely to eat?”).

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Step 2: Connecting Sugar and Calories (20 minutes)

Objective: Evaluate the relationship between sugar, calories, and fat in standard foods.

1. Each group will calculate the total sugar calories in their package using this formula:

   • Calories from Sugar = (Grams of Sugar) × 4
   • For 6th graders: Compare calories from sugar with the total calories listed.

2. Discussion Prompts:

   • Grade 2: “Do you think eating a lot of sugar gives our bodies good energy or bad energy?”
   • Grade 6: “If a snack is low in sugar but high in fat, is it always healthier? Why or why not?”

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Step 3: Healthy Choices Sorting (15 minutes)

Objective: Categorize processed and healthy foods to create a snack “menu.”

1. Sorting Game

   • Provide each group with a mix of empty food packages and pictures of healthy foods (e.g., fruits, carrots, nuts).
   • Ask groups to create a “Healthy Snack Table” by sorting items they think are best for the body.

2. Groups present their sorted snacks to the class, explaining:

   • Grade 2: Simple reasons (e.g., “this has less sugar, so it’s better for us!”).
   • Grade 6: More analytical responses (e.g., “this snack is healthier because it provides protein instead of just sugar”).

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3. Wrap-Up and Reflection (25 minutes)

Debrief (10 minutes):

• Ask students: “What did you learn about sugar today? How will you make better decisions when you pick a snack?”
• Write a collective “Healthy Snacks Rules” list using their input.

Snack Challenge (10 minutes):

• Provide a few healthy snack options (fruits, yogurt, etc.) and encourage students to create their own snack using the “Healthy Snacks Rules.”
• Ask students to explain why their snack follows the rules.

Exit Ticket (5 minutes):

• Younger students draw their “healthy snack choice” in their worksheet.
• Older students write one paragraph summarizing their favorite food from the activity and how they would tweak it to make it healthier.

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Assessment and Differentiation

Assessment:

1. Participation in the lab activity (collaboration and calculations).
2. Grade-specific ability to categorize and explain healthy and unhealthy options.
3. Completion of worksheets and exit tickets.

Differentiation Strategies:

• Ensure laminated labels include large text for 2nd graders while 6th graders get more detailed challenges (e.g., calculating portion ratios).
• Pairing grades allows older students to guide younger ones, reinforcing mutual learning.

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Teacher Note

This hands-on lab not only builds science skills (data collection, analysis) but integrates practical decision-making students can use in real life. It connects their learning to habits they can apply at home, supporting family discussions about food and health.