Geospatial Technologies: GPS and GISActivities & Teaching Strategies
Active learning works well for geospatial technologies because students need to experience firsthand how GPS and GIS function rather than just read about them. By handling tools, interpreting data, and troubleshooting challenges in real contexts, students build durable spatial reasoning skills that static lessons cannot match.
Learning Objectives
- 1Analyze how satellite imagery, processed through GIS, reveals patterns of environmental change over time in Canadian landscapes.
- 2Explain how GIS tools support urban planners in making data-driven decisions for infrastructure development in specific Canadian cities.
- 3Evaluate the ethical considerations and privacy concerns associated with widespread GPS data collection and its use.
- 4Create a simple map using collected GPS data and publicly available GIS layers to represent a local geographic feature.
- 5Compare the accuracy and applications of GPS and GIS in solving real-world problems.
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GPS Scavenger Hunt: Mapping School Grounds
Provide students with GPS apps on school devices to locate and log coordinates for 10 features, like trees or benches, with photos. Groups compile data into a shared class map using Google My Maps. Discuss accuracy challenges encountered outdoors.
Prepare & details
Analyze how satellite imagery has changed our understanding of environmental change.
Facilitation Tip: During the GPS Scavenger Hunt, circulate with a signal-strength app visible on your phone so students can see how obstructions affect their devices in real time.
Setup: Groups at tables with case materials
Materials: Case study packet (3-5 pages), Analysis framework worksheet, Presentation template
GIS Layering Activity: Urban Planning Challenge
Using ArcGIS Online or Google Earth Engine, pairs add layers like roads, population, and parks to a city map. They propose optimal school sites based on criteria and justify choices with data overlays. Share proposals in a gallery walk.
Prepare & details
Explain in what ways GIS helps urban planners make better decisions.
Facilitation Tip: In the GIS Layering Activity, give each group a large printed map base layer so they can physically trace and annotate changes before digitizing ideas.
Setup: Groups at tables with case materials
Materials: Case study packet (3-5 pages), Analysis framework worksheet, Presentation template
Satellite Imagery Comparison: Tracking Change
In small groups, students access free Landsat images of Canadian sites, such as Alberta tar sands or BC glaciers. They compare images from different years, measure changes with tools, and hypothesize causes. Present findings with annotations.
Prepare & details
Evaluate the ethical implications of constant location tracking and data privacy.
Facilitation Tip: For the Satellite Imagery Comparison, have students mark revisit dates directly on printouts to make temporal gaps concrete and discussable.
Setup: Groups at tables with case materials
Materials: Case study packet (3-5 pages), Analysis framework worksheet, Presentation template
Ethics Role-Play: GPS Privacy Debate
Divide class into roles: citizens, planners, police. Each group prepares arguments on GPS tracking benefits versus privacy risks, using real Canadian examples. Hold a structured debate with voting on policy recommendations.
Prepare & details
Analyze how satellite imagery has changed our understanding of environmental change.
Facilitation Tip: In the Ethics Role-Play, assign roles based on real cases students researched so debates stay grounded in evidence they gathered.
Setup: Groups at tables with case materials
Materials: Case study packet (3-5 pages), Analysis framework worksheet, Presentation template
Teaching This Topic
Experienced teachers approach this topic by letting students struggle briefly with technology before scaffolding solutions, mirroring how geospatial experts troubleshoot in the field. Avoid lecturing about accuracy or bias; instead, create moments where students discover these concepts through data they collect themselves. Research shows this inquiry-based approach improves retention of spatial concepts compared to traditional instruction.
What to Expect
Successful learning looks like students confidently using GPS devices to locate points, analyzing GIS layers to explain patterns, and discussing ethical trade-offs with specific examples. They should connect technology use to real-world decisions and clearly articulate limitations they observed during activities.
These activities are a starting point. A full mission is the experience.
- Complete facilitation script with teacher dialogue
- Printable student materials, ready for class
- Differentiation strategies for every learner
Watch Out for These Misconceptions
Common MisconceptionDuring GPS Scavenger Hunt, students may assume their devices will work perfectly indoors or under dense tree cover.
What to Teach Instead
Pause the hunt at three key obstructions and have students test signal strength, then compare results. Ask them to propose one workaround for each location using available school resources.
Common MisconceptionDuring GIS Layering Activity, students may believe their final maps represent unbiased truth.
What to Teach Instead
Have groups present their map choices to peers, who must identify one selection that could influence interpretation. Students then revise their layers based on this feedback.
Common MisconceptionDuring Satellite Imagery Comparison, students may think images update daily with fine detail like street-level photos.
What to Teach Instead
Provide two images of the same area taken years apart with different resolutions. Students annotate each image to identify delays and limitations, then write a one-sentence caption explaining their findings.
Assessment Ideas
After GPS Scavenger Hunt and GIS Layering Activity, present students with two new scenarios: one requiring GPS use and one needing GIS analysis. Ask them to write one sentence explaining their choice and cite one limitation they observed during activities.
During Ethics Role-Play, provide a school scenario about installing GPS trackers on buses. Have students role-play stakeholders and, after the debate, write a one-paragraph reflection connecting their character’s argument to real-world privacy concerns they discussed.
After Satellite Imagery Comparison, give students a blank map of their neighborhood. Ask them to identify one environmental change they could track using satellite imagery and one privacy concern that might arise from collecting such data locally.
Extensions & Scaffolding
- Challenge: Ask students to design a GPS-based treasure hunt for another class, including three alternative wayfinding methods for areas where GPS fails, and test it during recess.
- Scaffolding: Provide a partially completed GIS layer template with pre-labeled features so struggling students can focus on adding meaningful data rather than formatting.
- Deeper exploration: Invite a municipal planner or conservation authority guest speaker to discuss how their daily work uses the same tools students just practiced.
Key Vocabulary
| Geospatial Technology | Technologies that work with information tied to a specific location on Earth, including GPS and GIS. |
| GPS (Global Positioning System) | A system using satellites to determine a precise location on Earth, commonly used for navigation and data collection. |
| GIS (Geographic Information System) | A system designed to capture, store, manipulate, analyze, manage, and present all types of geographically referenced data. |
| Satellite Imagery | Digital photographs of Earth taken from satellites, used to observe land cover, environmental changes, and human activity. |
| Spatial Data | Information that describes the location and shape of geographic features and the relationships among them. |
Suggested Methodologies
Planning templates for Geography
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