What geographical skills do students need to interpret maps, graphs, statistics and spatial data in the SACE Stage 2 Geography examination?
Interpret and apply geographical skills including map reading, graph and statistical interpretation, photograph analysis and spatial technologies to answer geographical questions.
The core geographical skills assessed in the SACE Stage 2 Geography e-exam: reading topographic maps, calculating grid references and distance, interpreting graphs and statistics, analysing photographs, and using spatial technologies, with worked techniques.
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What this dot point is asking
This dot point underpins the geographical skills tested across the course and, in particular, Section 1 of the external examination. Marks here come from precision and correct technique rather than long writing, so practising the mechanics is essential.
Reading topographic and thematic maps
Topographic maps show relief and features using contour lines, symbols and a grid.
- Grid references: a four-figure reference locates a grid square; a six-figure reference locates a point to within 100 metres, read eastings before northings ("along the corridor, up the stairs").
- Distance: use the linear scale or representative fraction. Measure along the route and convert using the scale, for example a 1:50,000 map means 1 centimetre equals 500 metres.
- Relief and gradient: closely spaced contours mean steep slopes; gradient is the vertical rise divided by the horizontal distance.
- Direction and bearing: give compass direction or a bearing in degrees from north.
- Area, cross-sections and intervisibility: estimate area from grid squares and draw cross-sections from contour values.
Interpreting graphs and statistics
Geography uses many graph types, and choosing or reading the right one matters.
- Line graphs for trends over time, such as rainfall or population.
- Bar and compound bar graphs for comparing categories.
- Population pyramids for age and sex structure.
- Climate graphs combining a temperature line and rainfall bars.
- Scatter graphs to show relationships, where a line of best fit reveals correlation.
- Choropleth, isoline, flow and proportional symbol maps for spatial data.
Statistical skills include reading rates and percentages, calculating the mean, median and range, and describing trends precisely with figures rather than vague words.
Analysing photographs and remote imagery
Ground-level, oblique aerial and vertical satellite images each give different views. Skills include describing the foreground, middle ground and background, identifying land cover and land use, comparing images over time to detect change (for example deforestation or urban growth), and linking what is visible to geographical processes.
Using spatial technologies
Geographic Information Systems (GIS) layer spatial data so patterns can be analysed, for example overlaying flood risk, land use and population. Remote sensing from satellites such as Landsat classifies land cover and tracks change. GPS locates field data precisely. The exam expects you to interpret outputs from these technologies, not to build them.
Linking it together
A complete command of geographical skills means giving accurate grid references, calculating distance and gradient from scale and contours, interpreting the full range of graphs and statistics, analysing photographs and imagery for change, and reading outputs from GIS and remote sensing. These are the precise, evidence-based techniques that Section 1 of the SACE Stage 2 Geography examination assesses.
Exam-style practice questions
Practice questions written in the style of SACE Board exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
2019 SACE Stage 25 marksRefer to the topographic map COAL RIVER. A tourist hires a bicycle in Richmond (area reference 3568) and plans to cycle along route C322 to point P (grid reference 282734) and along C324 to point Q (grid reference 295625). Compare the geographical features of these routes.Show worked answer →
Five marks for a "compare" answer, so identify features of each route and draw explicit similarities and differences, using map evidence (relief, gradient, distance, land use, settlements).
A high-scoring comparison covers, for both routes:
Relief and gradient: read contour spacing to state which route is steeper or flatter and whether it climbs or descends. Closely spaced contours mean a steeper, harder ride.
Distance: estimate length using the linear scale or grid squares; note which route is longer.
Land use and scenery: compare what each route passes through, for example farmland, bush, river flats or built-up areas.
Features along the way: rivers, bridges, junctions or points of interest.
The key skill is comparative language ("Route C322 is steeper than C324, whereas C324 is longer but flatter"), with grid references and contour evidence cited throughout.
2018 SACE sample4 marksRefer to the topographic map PITLOCHRY (scale 1:25 000). Study the route of the railway from grid reference 910 630 to grid reference 953 570. Using evidence from the map, suggest what problems were encountered when building the railway and describe how these problems were overcome.Show worked answer →
Four marks, so pair each problem with how it was solved, using clear map evidence (contours, water features, symbols). Aim for two problem-solution pairs developed fully.
Problem: steep or rugged relief. Closely spaced contours along the route show steep gradients. Overcome by following valleys and contours, with cuttings and embankments to keep the gradient gentle.
Problem: crossing rivers, lochs or marshy ground. Drainage and water symbols on the map show watercourses cutting across the route. Overcome by building bridges, viaducts or embankments.
Problem: high ground or ridges blocking the direct line. Overcome with tunnels or by curving the line around obstacles, shown by the winding route on the map.
Markers reward specific map evidence (named grid references, contour values, water features) tied to each engineering solution rather than generic statements.