Nutrient Detectives

Overview

In this first lesson of a six-part unit, students build a shared foundation for understanding macronutrients and micronutrients. They investigate what nutrients do, where they are found, and how foods and fluids support the body while recognizing that food choices, cultures, bodies, and access vary.

Learning intentions

Students will be able to:

• Explain the broad functions of carbohydrates, proteins, fats, vitamins, minerals, water, and fiber.
• Classify nutrients as macronutrients or micronutrients.
• Match nutrients with accurate functions and common food sources.
• Translate information from text and images into a concept map and brief written explanation.

Success criteria

• I can classify the seven nutrients as macronutrients or micronutrients.
• I can explain at least one function of each nutrient group.
• I can identify a reasonable food or fluid source for a nutrient.
• I can use evidence from an information card or slide to explain my thinking.

Curriculum links

• Reading Science and Technical Subjects: cite specific textual evidence when analyzing precise details in health and nutrition texts.
• Reading Science and Technical Subjects: translate technical information from words and images into a visual concept map.
• Reading Science and Technical Subjects: independently comprehend grade 9–10 informational texts.
• Writing in Science and Technical Subjects: organize information with headings, graphics, and clear connections to aid comprehension.

These literacy expectations support North Carolina’s Common Core-aligned approach to reading, writing, communicating, and interpreting information in Health. Students also practice collaboration, respectful communication, and responsible health decision-making.

Lesson structure (55 minutes)

1. 0–5 min · Anonymous quick poll. Teacher opens the introduction and anonymous poll slides and displays three questions: “What helps the body move and think?” “What helps the body grow and repair?” and “What helps the body stay hydrated?” Students respond anonymously on the first section of the nutrient detectives recording sheet using words, drawings, or examples of foods and fluids. Teacher briefly displays the range of responses without judging or ranking them.

2. 5–12 min · Nutrient mystery image sort. Teacher pairs students and distributes teacher-prepared image cards showing foods and fluids, including familiar and culturally varied examples; students use the mystery prompt on the image-sort directions. Partners sort images into “energy,” “growth and repair,” “regulation/protection,” “hydration,” or “not enough information,” then record one question or observation on the worksheet. Teacher emphasizes that one food can provide several nutrients and that no cuisine or food tradition is being ranked.

3. 12–15 min · Build the big picture. Teacher introduces the seven nutrient categories with the nutrient overview visual, clarifying that carbohydrates, proteins, and fats are macronutrients generally needed in larger amounts, while vitamins and minerals are micronutrients generally needed in smaller amounts. Water and fiber are essential components of health but are not classified as macronutrients or micronutrients in the same way. Students revise one image-sort choice and explain the change to a partner.

4. 15–35 min · Team nutrient relay. Teacher forms five teams of five and gives each team a set of teacher-prepared nutrient, function, and food-source cards. Using the relay instructions and timing slide, teams match carbohydrates, proteins, fats, vitamins, minerals, water, and fiber with accurate functions and possible sources. Students must justify each match using the information cards, then record two completed matches and one uncertainty on the worksheet. After each round, one team member checks another team’s matches using the answer prompts on the slides. Teacher circulates, asks “What evidence supports that match?” and corrects misconceptions, such as “all fats are unhealthy” or “vitamins provide energy.”

5. 35–50 min · Concept-map challenge. Teacher models a simple example on the concept-map challenge slide: “nutrient → function → possible source,” including linking words such as “helps,” “supports,” and “found in.” Teams create a concept map in the final section of the worksheet that includes all seven nutrients, the macro/micronutrient distinction, at least one function for each, and at least one food or fluid source for each. Students add a short note explaining why a single food may fit more than one category. Teams complete a gallery check by identifying one accurate connection and one connection that needs clarification.

6. 50–55 min · Exit ticket and close. Teacher displays the exit-ticket and closing slides. Students independently answer: “Are proteins macro- or micronutrients? Explain one function and name one possible source.” They also write one question they still have about nutrients. Teacher collects the worksheet and exit response, briefly previews that the next lesson will examine carbohydrates, proteins, and fats in greater detail.

Resources

• the nutrient detectives slide deck
• the nutrient detectives recording sheet
• Teacher-prepared nutrient mystery image cards
• Teacher-prepared nutrient, function, and food-source relay cards
• Projector or interactive display
• Timer
• Chart paper or whiteboards
• Markers and pencils
• Optional illustrated or bilingual vocabulary cards

Assessment

• During the image sort and relay, listen for whether students distinguish a nutrient’s function from a food source and ask students to cite the card or slide that supports a match.
• Review concept maps for all seven nutrients, correct macro- versus micronutrient classification, clear function/source connections, and linking words.
• Use the exit ticket to identify students who can classify proteins and explain a function and source. Reteach classifications or functions that are frequently confused before Lesson 2.

Differentiation

• Provide illustrated or bilingual cards, a word bank, color-coded card sets, and sentence starters such as “___ is a ___ because…” and “One function of ___ is…”
• Read key information cards aloud, chunk directions into one step at a time, and allow students to draw or dictate explanations when writing presents a barrier.
• Pair students intentionally and assign rotating roles such as reader, matcher, evidence checker, recorder, and reporter so all students contribute.
• Challenge early finishers to add a second possible source for each nutrient and explain why nutrient needs and food access can differ among individuals without labeling foods or cultures as better or worse.