Lesson 3: Measuring & Estimating Distances on the Zoo Map
Using the map scale to estimate and calculate how far apart Hamilton Zoo's animals really are — connecting measurement skills to a real-world context.
🎯 Ngā Whāinga Akoranga | Learning Intentions
How a scale bar works on a map; how to measure distances using a ruler and convert to real distances; the difference between measuring in a straight line (as-the-crow-flies) vs. along pathways.
Measure and convert five inter-enclosure distances using the map scale; estimate whether a family could walk a planned route in one hour.
🎥 Media Anchor & Mathematical Scaffold
Map Scale and Distance Estimation
Video Anchor: Mathematical reasoning and spatial thinking in real-world contexts (Runtime: 0:00-3:05).
🧠 1. Get Ready
The map says 1cm = 25 metres. If the giraffe is 4cm from the entrance on the map, how far is the REAL walk? Calculate it before we start.
👁️ 2. Key Ideas to Cover
This lesson runs as a discussion and map task — no video is required. If your class has one you like on map scale and distance (5–10 min), it fits well as an optional opener before the task below.
🗣️ 3. Kaiako Move
Kaiako Move: Show students how to use a piece of string to measure curved pathways on a map (then straighten against the ruler). Discuss why curved routes are longer than straight-line distances.
Task: Zoo Tour Planner: Plan a 45-minute zoo tour for a family with young children. Calculate total walking distance and check it fits within the time limit using the scale.
⚡ Whakaoho | Do Now (5 mins)
Estimate: how far do you walk to school each day? Is this more or less than the length of Hamilton Zoo? How could you check?
📐 Activity 1: Guided Mathematical Exploration (25 mins)
Distance comparison: measure the straight-line distance and the pathway distance between the same two enclosures. Calculate the difference. Why is the pathway always longer?
✍️ Activity 2: Application & Reflection (20 mins)
Tour planner presentation: share your 45-minute family zoo tour plan with another pair. Do the distances add up? Is the time estimate realistic? Refine based on feedback.
🏫 Kaiako Planning & Pedagogy Notes
Curriculum Alignment: Te Mātaiaho Mathematics Phase 2/3 — Measurement: use scale to estimate and calculate real distances; apply measurement to planning contexts.
Hamilton Zoo Context: Tasks are set at Hamilton Zoo as a familiar shared context. The grid, the distances and the routes in these lessons are teaching constructions, not surveyed zoo data — there is no zoo map supplied with this unit. If you want ākonga working from the real layout, bring the zoo's own visitor map to the lesson and say plainly that you are swapping the constructed grid for a real one.
Cultural Connection: Connect coordinate navigation to traditional Polynesian wayfinding — stars as coordinate systems, waka routes as vectors, mauri/kaitiakitanga of animal species at the zoo.