Lesson 7: Masks & Snorkels
Duration of Days: 1
Lesson Objective
Students will demonstrate the ability to clear a partially flooded mask and maintain continuous rhythmic breathing while swimming with a snorkel.
How does the use of specialized equipment change our sensory perception and breathing mechanics underwater?
Displacement, Mask Clear, Blast Clear, Purge Valve, Pressure Equalization.
1.12.9 Demonstrates water safety skills. If a pool facility is available, demonstrates water safety and basic swimming skills.
(DOK 2) Describe the physical process of "mask squeeze" and explain how to prevent it.
(DOK 3) Analyze why "blast clearing" a snorkel requires more forceful exhalation than normal breathing.
Learning to swim is a fundamental life-saving skill, not just a sport. In a state like Connecticut, with proximity to the Sound, various lakes, and backyard pools, water competence is a vital safety requirement. Beyond safety, swimming offers a way to stay active throughout your entire life without straining your joints, providing a "go-to" activity for stress relief and cardiovascular health from adolescence through adulthood.
Student choice
Successful completion of a 50-meter "Look & See" swim, including one intentional mask clearing and one snorkel purge mid-swim.
- Masks and Snorkels
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Kickboards and pull buoys
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"Noodle" flotation devices
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Life jackets (USCG Approved)
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Diving rings and sinking toys
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Whistles and reaching poles
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Goggles (optional but encouraged)