Balance and Stability

Overview

This 60-minute lesson is designed for Year 10 Physical Education students in New Zealand. It focuses on the principles of balance and stability, including key concepts such as base of support (BOS), line of gravity (LOG), and cognitive factors affecting balance. The lesson aligns with the New Zealand Curriculum (NZC) Health and Physical Education learning area and incorporates relevant key competencies and achievement objectives.

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Curriculum Links

• Learning Area: Health and Physical Education
• Achievement Objective:
  • Movement Concepts and Motor Skills: Understand and apply movement concepts (such as balance, stability, and body control) in a variety of physical activities. (NZC, Level 6 - Years 9-10)
• Key Competencies:
  • Thinking (critically understanding principles of balance and stability)
  • Managing Self (applying knowledge during physical activities)
  • Using Language, Symbols, and Texts (understanding and using appropriate terminology)
• Critical Focus for Years 9-10 (Phase 4): Having a purpose and being empathetic and resilient, fostering physical literacy and self-efficacy in physical activity settings.

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Learning Objectives

By the end of the lesson, students will be able to:

1. Define and explain the concepts of base of support (BOS), line of gravity (LOG), and cognitive aspects of balance.
2. Demonstrate an understanding of how BOS and LOG affect balance and stability in different physical postures and movements.
3. Explore the relationship between cognitive focus and maintaining balance.
4. Apply these principles practically in individual and group balance-based tasks.
5. Reflect on their performance and describe strategies for improving balance.

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Equipment Needed

• Cones or markers
• Balance beams or taped lines on the floor
• Stopwatch or timer
• Whiteboard and markers
• Worksheets for quick definitions and reflection
• Optional: balance boards or wobble cushions
• Heart rate monitors or manual pulse check instructions

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Timing and Activities

1. Introduction and Warm-up (10 minutes)

• Welcome and Context (5 min):
  Briefly introduce the topic of balance and stability. Explain its importance in everyday activities and sports. Outline learning objectives clearly on the board.
• Physical Warm-up (5 min):
  Simple dynamic warm-up focusing on posture and controlled movements (e.g., marching in place, heel-to-toe walking).

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2. Teaching: Concepts and Definitions (10 minutes)

• Interactive Explanation (7 min):

  • Base of Support (BOS): The area beneath a person that includes every point of contact with the supporting surface.
  • Line of Gravity (LOG): An imaginary vertical line that passes through the centre of mass of the body and must fall within the BOS for balance to be maintained.
  • Cognitive Aspects: How mental focus, anticipation, and decision-making influence balance and stability.

• Use diagrams on the whiteboard and demonstrate with a student standing in different stances to show BOS and LOG.

• Questioning to Check Understanding (3 min):

  • Ask students to give examples where BOS is wide or narrow and how this affects balance.
  • Discuss the importance of mental focus in maintaining balance (e.g., during sports or dance).

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3. Practical Exploration (25 minutes)

• Activity 1: Base of Support Variations (7 min)
  Students work in pairs or small groups around stations where they will:

  • Stand with feet close together, then feet apart
  • Stand on one foot, then barefoot on toes
  • Observe and discuss how changes affect their balance.

• Activity 2: Line of Gravity and Stability (7 min)
  Using a taped straight line on the floor or balance beam:

  • Students try to balance while keeping their LOG over the BOS (e.g., standing straight, then leaning forward/backward).
  • Add gentle nudges to challenge balance and observe adjustments.

• Activity 3: Cognitive Balance Challenge (4 min)

  • Students perform balancing tasks (e.g., standing on one leg) while simultaneously performing a cognitive task, such as reciting the alphabet backward or answering quick mental maths questions, to explore the cognitive impact on balance.

• Activity 4: Balance Obstacle Course (6 min)

  • Set up a course using cones, balance beams, taped lines, and wobble cushions or balance boards.
  • Students navigate the course focusing on maintaining balance through different surfaces and movements (e.g., walking heel-to-toe on a beam, stepping on wobble cushions, sidestepping cones).
  • Encourage students to notice how BOS and LOG change with each obstacle.

• Activity 5: Partner-Assisted Balance Challenges (5 min)

  • In pairs, one student provides gentle support or resistance (e.g., light pushes or holds) while the other maintains balance in various stances (e.g., single leg stand, semi-squat).
  • Switch roles after a set time.
  • Discuss how external forces affect BOS and LOG and the strategies used to maintain stability.

• Activity 6: Heart Rate Measurement and Balance (5 min)

  • Students measure their resting heart rate manually or with monitors before starting a balance task (e.g., standing on a wobble cushion).
  • Immediately after completing the task, measure heart rate again.
  • Discuss how physical and cognitive demands of balance activities can affect physiological responses and what this means for performance and fatigue.

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4. Assessment and Reflection (10 minutes)

• Formative Assessment through Observation and Questioning:
  Teacher circulates, observing students’ balance during activities, asking questions about BOS and LOG, and noting their ability to focus cognitively.

• Group Reflection (5 min):
  Facilitate a class discussion where students share:

  • What stance gave them the best balance and why?
  • How did cognitive tasks affect their balance?
  • Strategies they can use to improve personal balance in sport or daily life.

• Written Reflection (5 min):
  Students answer short written questions on a worksheet:

  1. Define base of support and line of gravity in your own words.
  2. Explain how a wider BOS affects balance.
  3. Describe how mental focus can improve balance.

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5. Cool Down and Lesson Close (5 minutes)

• Gentle stretching in a circle focusing on balance-related muscles (calves, ankles, core).
• Summarise key points learned.
• Encourage students to think about balance in their daily activities and sports.

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Differentiation Strategies

• Modify balance tasks for students with physical challenges—allow seated balance activities or use support aids.
• Provide extra challenge for advanced students by introducing unstable surfaces or multi-tasking cognitive challenges.

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Teacher Notes

• Use clear, concise technical language and check comprehension with questioning.
• Relate concepts to culturally relevant physical activities (like kapa haka stance or traditional games).
• Highlight the importance of balance not only in sports but in everyday movements to foster lifelong physical literacy.

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Summary Table of Lesson Plan

Time	Activity	Objective	Location/Resources
0-10	Introduction & Warm-up	Activate prior knowledge & get moving	Gym/field, whiteboard
10-20	Teaching: Concepts and Definitions	Build foundational understanding of BOS, LOG, cognitive balance	Whiteboard, demonstration
20-45	Practical Exploration	Apply concepts practically, develop motor skills and cognitive awareness	Activity stations, cones, balance beams, balance boards, wobble cushions
45-55	Assessment & Reflection	Gauge understanding & self-assess learning	Class discussion, worksheets
55-60	Cool Down & Close	Recover & consolidate learning	Circle stretch

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This lesson is designed to fully engage Year 10 students in cognitive and physical learning consistent with the New Zealand Curriculum's Health and Physical Education area, building physical literacy in a way that supports their general wellbeing and movement competence.