NZ Curriculum Phase 3 (Years 7-8)

📐 Hamilton Zoo Coordinate Navigator 📊 Kaiwhakarea Tauwāhi Kōpere Kirikiriroa

Coordinate Geometry & Mathematical Navigation

🎯 Mathematical Mission Brief | Whakatōhea Pāngarau

Welcome to advanced zoo navigation! You'll use proper coordinate geometry to solve real problems at Hamilton Zoo.

📊 Key Mathematical Concepts:

  • Coordinate System: (x, y) notation with origin at (0, 0)
  • Scale Factor: 1 grid unit = 10 metres in real life
  • Distance Formula: Calculate exact distances between points
  • Coordinate Plane: Quadrant I navigation (positive values only)
  • Problem Solving: Apply mathematics to real-world scenarios
Distance = √[(x₂ - x₁)² + (y₂ - y₁)²]

Scale: 1 unit = 10m, so multiply your answer by 10 for real distance!

Hamilton Zoo Coordinate System - Phase 3

Activity 1: Precise Coordinate Mapping

Task: Identify the exact coordinates (x, y) for each location. Remember: x is horizontal (across), y is vertical (up).

Location x-coordinate y-coordinate Coordinate Pair (x, y)
🚗 Car Park (Origin A) 0 0 (0, 0)
🦒 Giraffe Exhibit (, )
🐘 Elephant Enclosure (, )
🐅 Tiger Territory (, )
💧 Wetlands Area (, )

Activity 2: Distance Calculations

🧮 Mathematical Method:

Step 1: Identify coordinates (x₁, y₁) and (x₂, y₂)

Step 2: Apply distance formula: d = √[(x₂ - x₁)² + (y₂ - y₁)²]

Step 3: Multiply by scale factor (10m) for real distance

Calculate the exact distance from Car Park A (0, 0) to each animal exhibit:

🦒 Distance to Giraffes:

Giraffe coordinates: (, )

Calculation: d = √[( - 0)² + ( - 0)²]

d = √[² + ²]

d = √[ + ]

d = √ = units

Real distance: metres

🐘 Distance to Elephants:

Elephant coordinates: (, )

Calculation: d = √[( - 0)² + ( - 0)²]

d = units = metres

Activity 3: Route Optimization Problem

Mathematical Challenge: A zoo keeper needs to visit all animal exhibits efficiently. Using your distance calculations, determine the optimal route.

📊 Distance Summary Table:

Route Segment Distance (units) Distance (metres) Walking Time (3 km/h)
Car Park → Giraffes min
Car Park → Elephants min
Car Park → Tigers min

Optimal visiting order based on distance:

1st:

2nd:

3rd:

Mathematical justification:

Activity 4: Advanced Coordinate Geometry

Real-world Application: The zoo is planning a new pathway system. Use coordinate geometry to solve design problems.

Problem 1: Pathway Intersection

A straight pathway connects the Giraffes (coordinates: _____, _____) to the Elephants (coordinates: _____, _____).

Another pathway connects Tigers (coordinates: _____, _____) to Wetlands (coordinates: _____, _____).

Calculate: Do these pathways intersect? If so, what are the intersection coordinates?

Pathway 1 equation: y = x +

Pathway 2 equation: y = x +

Intersection point: (, )

Problem 2: Area Calculation

The zoo wants to fence a triangular area with vertices at Car Park (0, 0), Giraffes, and Elephants.

Calculate the area of this triangle using coordinates:

Area = ½|x₁(y₂ - y₃) + x₂(y₃ - y₁) + x₃(y₁ - y₂)|

Area = square units = square metres

Activity 5: Mathematical Modeling Challenge

Advanced Application: Model a real zoo management problem using coordinate geometry.

🏗️ Zoo Expansion Project

The zoo board wants to add a new café that is:

  • Equidistant from all three main animal exhibits
  • Within the zoo boundaries
  • Accessible by existing pathways

Mathematical Task: Find the optimal café location using coordinate geometry.

Method: Circumcenter Calculation

Step 1: Find the perpendicular bisectors of the triangle formed by the three exhibits

Step 2: Calculate their intersection point

Step 3: Verify equal distances to all three points

Proposed café coordinates: (, )

Verification - Distance to each exhibit:

To Giraffes: units

To Elephants: units

To Tigers: units

Professional recommendation:

🎉 Mathematical Mastery Achieved! | Angitū Pāngarau!

Congratulations! You've mastered Phase 3 coordinate geometry!

✅ Skills Mastered:

  • 📍 Precise coordinate identification
  • 📐 Distance formula application
  • ⚖️ Scale factor conversions
  • 🎯 Route optimization
  • 📊 Mathematical modeling
  • 🔬 Problem-solving strategies

🚀 Ready For:

  • 🔢 Four-quadrant systems
  • 📈 Linear equation modeling
  • 🔄 Geometric transformations
  • 📊 Advanced optimization
  • 🧮 Algebraic relationships
  • 📐 Trigonometric applications

🎯 Teacher Notes | Ngā Kōrero Kaiako

📚 NZ Curriculum Phase 3 Alignment:

📐 Geometry & Measurement:

  • Locate coordinate points on coordinate plane
  • Communicate and interpret locations using coordinate systems
  • Calculate distances using coordinate geometry
  • Apply scale factors in practical contexts
  • Use geometric relationships to solve problems

🔢 Algebra:

  • Substitute values into formulas and equations
  • Solve linear equations in context
  • Model real situations using mathematical expressions
  • Use tables and graphs to explore relationships
  • Apply mathematical reasoning to justify solutions

🎓 Assessment Opportunities:

📊 Formative:

  • Coordinate plotting accuracy
  • Distance calculation process
  • Mathematical reasoning quality
  • Problem-solving approaches

📋 Summative:

  • Complete zoo optimization project
  • Mathematical modeling assessment
  • Coordinate geometry test
  • Real-world application portfolio

🌿 Cultural Integration:

  • Whakatōhea: Mission/quest concept from Māori tradition
  • Tauwāhi: Traditional navigation and positioning knowledge
  • Kaitiakitanga: Mathematical stewardship of zoo resources
  • Place Connection: Hamilton/Kirikiriroa as mathematical space