Lesson 5 - Diving Technique and Streamlining
Training Science & Competition Skills
•Year 8
•Swimming
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How can mastering the perfect diving entry position give you a competitive advantage in swimming?
Learning Objectives
- Demonstrate safe diving technique from poolside using correct body position
- Execute streamline position underwater to maximise glide efficiency
- Apply progressive diving skills from sitting through to standing dive entries
Key Outcomes
- Students will safely perform diving starts with controlled entry
- Students will maintain streamline position for extended underwater glides
- Students will understand and apply diving safety protocols consistently
Equipment & Resources Required
Ensure diving area is clearly marked and deep enough for safe diving practice
Alternative: N/A - essential requirement
Available poolside for students requiring buoyancy support during streamline practice
Alternative: Kickboards for floating support
Placed at various depths for streamline glide target practice
Alternative: Any sinkable pool toys for underwater retrieval
Rescue pole, first aid kit, emergency stop equipment readily accessible
Alternative: N/A
Positioned poolside to show diving sequence diagrams
Alternative: Poolside visual aids or laminated instruction cards
Key Vocabulary
Entering the water head-first from a standing, crouching, or sitting position
A body position where arms are extended overhead, hands locked, body straight and toes pointed to reduce water resistance
Moving through water using momentum from the dive without active swimming movements
The angle at which the body enters the water, ideally between 30-45 degrees for safe shallow diving
Starting position with toes gripping the pool edge, feet shoulder-width apart
Bending at the hips with straight legs and reaching hands toward the water
Skill Progression Pathway
Understanding where pupils are coming from and where they're going
Prior Learning
- Confident swimming in deep water without support
- Ability to submerge fully and control breathing underwater
- Understanding of basic pool safety rules
- Experience with floating and gliding in prone position
Current Skills
- Safe diving technique from poolside at various heights
- Streamline body position for efficient underwater movement
- Progressive diving starts from sitting to standing position
- Risk assessment and safety awareness for diving activities
Next Steps
- Racing dive starts from blocks
- Advanced streamlining with dolphin kicks
- Competitive swimming starts and turns
- Deep water diving and underwater swimming
Milestone Indicators
Key Teaching Points
- Safety is non-negotiable: only dive in designated deep areas where depth is known and confirmed
- Streamline position is the foundation of all diving: arms locked overhead squeezing ears, hands clasped, body tight
- Entry angle matters: aim for 35-45 degrees - not too flat (belly flop) or too steep (going too deep)
- Hands always enter water first to protect head and neck during entry
- The five-step sequence creates consistency: toes over edge, pike with streamline, fall down, glide, surface
- Progressive development is key: master sitting position before crouching, crouching before standing
- Glide distance directly reflects streamline quality: tighter streamline equals longer, faster glides
Common Misconceptions
- Misconception: 'Diving means jumping high and far' - Correction: Diving for swimming is a controlled forward and downward fall, not an upward jump. We want smooth water entry, not distance or height.
- Misconception: 'Streamline is just putting your arms up' - Correction: True streamline requires locked elbows, clasped hands, arms squeezing ears, engaged core, and pointed toes. Every detail matters for reducing drag.
- Misconception: 'It's safe to dive anywhere as long as the water looks deep' - Correction: Never assume depth. Only dive in designated areas where you have confirmed the depth is adequate (minimum 1.5m for these diving techniques).
- Misconception: 'Going faster means better diving' - Correction: Control and technique are more important than speed. A slower, controlled dive with perfect streamline is far better than a fast, sloppy entry.
- Misconception: 'If I can do a standing dive once, I've mastered it' - Correction: Consistency is mastery. You should be able to perform the technique correctly 9 out of 10 times before moving to more advanced skills.
SEN Adaptations
ADHD
- Break instructions into very short, single-step chunks; provide frequent activity changes within skill progressions; use high-energy relay format for engagement; give clear, immediate feedback; allow movement and activity while waiting for turn; use visual timers for activity durations
dyspraxia
- Extended practice time at each progressive level before advancing; break down streamline position into individual body parts (first arms, then add legs, then add core); use mirrors or video feedback to develop body awareness; larger targets for diving rings; additional demonstrations and modelling; celebrate effort and persistence over perfect technique
autism spectrum
- Provide visual schedule showing lesson sequence; allow preview of diving area and equipment before lesson; offer quiet observation time before participation; use consistent, predictable language and routines; provide sensory breaks if overwhelmed by pool environment; allow extra processing time for instructions
visual impairment
- Use brightly coloured diving rings for high contrast; provide detailed verbal descriptions of body positions; allow tactile demonstration by feeling teacher's streamline position; use buddy system with sighted partner; ensure extra guidance for spatial awareness in pool environment
hearing impairment
- Demonstrate all techniques visually with exaggerated movements; use clear hand signals for start/stop/clear area; provide written or visual cards with diving sequence steps; position for clear lip-reading visibility; use vibrating or visual alert system instead of whistles
physical disability
- Adapt diving entry to seated or supported position based on mobility; allow use of flotation devices for security; modify streamline position to accommodate limited range of motion; permit assisted entries with support staff; focus on achievable elements of technique with celebration of all attempts
Cross-Curricular Links
Maths
Angles: measuring and estimating entry angles (30-45 degrees); distance: measuring glide distances in metres; time: calculating duration of breath holds and activity timings; geometry: understanding body shapes and positions (streamline as cylinder)
Science
Forces and motion: understanding gravity's role in diving entry; water resistance and drag reduction through streamlining; principles of buoyancy and flotation; body systems: cardiovascular response to exercise, respiratory control during breath-holding
Physics
Hydrodynamics: how body shape affects water resistance; momentum and its conservation from dive through glide; energy transfer from potential (height on poolside) to kinetic (movement through water)
PSHE
Risk assessment and personal safety decision-making; building self-confidence and self-esteem through progressive achievement; resilience when facing challenging new skills; teamwork and supporting others during relay activities; managing competitive emotions appropriately
Teacher Guidance
Positioning
In water during diving practice for immediate assistance; on pool deck during demonstrations for visibility; circulating during practice to provide individual feedback; positioned at corner during relays to observe multiple lanes
Observation Focus
Priority one: safety consciousness and appropriate risk assessment by students; Priority two: streamline position quality (arms, hands, body alignment); Priority three: entry angle control; Priority four: glide distance and efficiency; Priority five: confidence levels and emotional response to challenges
Intervention Points
Intervene immediately if: unsafe diving behaviour observed, student attempting level beyond current ability without proper progression, signs of panic or distress in water, technique deterioration suggesting fatigue, competitive behaviour compromising safety, any head/neck impact or injury
Demonstration Notes
Always demonstrate from multiple angles (front, side, back) so all students can see; perform in slow motion first, then full speed; show common errors contrasted with correct technique; use students who demonstrate well as additional models; ensure demonstrations are visible to entire group before starting
Verbal Cues
- •'Squeeze those ears!' - for tight arm position in streamline
- •'Fall like a tree!' - for controlled forward entry not jumping
- •'Hands lead the way!' - for hands-first entry protection
- •'Arrow through the water!' - for tight streamline glide
- •'Reach for the entry point!' - for appropriate entry angle
- •'Clear area check!' - before every dive
- •'Pike position!' - for hip hinge in diving preparation
Safety Considerations
Space & Surface Requirements
Space Requirements
Swimming pool with designated diving area minimum 1.5m depth, clearly marked boundaries, adequate pool deck space for instruction
Surface Check
Pool edge non-slip and clear of hazards, water clarity sufficient for visibility to pool bottom, appropriate temperature for extended water time
Equipment Safety
Safety Checks
- •Diving rings and pool noodles inspected for damage or sharp edges
- •All equipment stored safely when not in use to prevent trip hazards
- •Rescue equipment (pole, ring buoy) accessible and in good condition
- •First aid kit readily available poolside
Risk Management
Key Risks
- •Head or neck injury from improper diving technique or insufficient depth
- •Collisions between swimmers in diving area
- •Exhaustion or over-exertion leading to difficulty swimming
- •Slips and falls on wet pool deck
- •Drowning risk if students exceed their competence level
Risk Mitigation
- •Strict one-at-a-time diving with teacher signal system
- •Clear area checks before every dive entry
- •Progressive skill development from sitting to standing positions
- •Continuous monitoring of student fatigue and confidence levels
- •Depth markers clearly visible and regularly referenced
- •Mandatory safety briefing at lesson start with comprehension checks
- •Appropriate differentiation allowing students to work at safe level
- •Teacher positioned in water for immediate assistance capability
Supervision & Emergency Procedures
Supervision Points
- •Teacher positioned for clear sightlines to all diving participants
- •Regular headcounts to ensure all students accounted for
- •Identify and monitor less confident swimmers more closely
- •Position allows immediate water entry for rescue if needed
- •Assistant or lifeguard support if available for enhanced supervision
Emergency Procedures
On any injury: stop all activity immediately, assess situation, remove student from water if safe to do so, administer first aid as appropriate, contact emergency services if serious injury, complete accident report, notify parents/guardians. For diving-specific injuries (especially head/neck): keep student still, do not move unless in immediate danger, call emergency services immediately, support head and neck if rescue needed.