Grade Level
7th Grade
Subject
Health Education / Science
Grade Level
45-60 minutes
Key Concept
The biological systems of tooth decay
Materials
4 items included
Includes the Lesson Plan, slideshow, and printable student worksheets.
Lesson Overview
This lesson moves beyond basic hygiene to teach the biological systems of tooth decay. Students investigate how bacteria, sugar, and acid interact, focusing on the critical ‘Frequency vs. Amount’ rule.
Learning Objectives
✔ Explain the biological process of tooth decay (Bacteria + Sugar = Acid).
✔ Describe the ‘Frequency Rule’ and its impact on enamel recovery.
✔ Analyze 15 real-world habit scenarios to identify high-risk behaviors.
✔ Justify health predictions using scientific terms like ‘Demineralization’.
Activity Overview
1. Introduction – 15 minutes
Use Slides 1–10 to teach the biological system of decay. Emphasize the Frequency Rule.
2. Lab Rotation – 25 minutes
Students rotate through 15 stations every 90 seconds. They analyze each habit on their worksheet
3. Class Debrief – 10 minutes
Discuss findings. Which station was highest risk? Why?
4. Exit Ticket – 5 minutes
Complete Slide 13 scenario individually
Total Activity Time: 55 minutes
Materials
- Oral Health Reality Lab Slideshow (14 Slides)
- 15 Reality Lab Station Cards (printed and placed around room)
- Student Investigation Worksheets (one per student)
- Exit Ticket (Slide 13)
Ready to teach?
Download all lesson materials in one convenient package.
The downloadable lesson plan includes detailed state standards alignment to help educators connect this lesson to curriculum requirements.
Download Individual Plans Separately
Provided by Zolli® Candy as a free classroom resource.
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