Communicating Findings: Maps & Data VisualizationActivities & Teaching Strategies
Active learning helps students confront the complexities of visual communication directly. By handling real data and flawed maps, they experience firsthand how design choices shape understanding.
Learning Objectives
- 1Design a thematic map or infographic to visually represent historical population changes in Canada.
- 2Analyze the effectiveness of different data visualization types in supporting arguments about Canadian settlement patterns.
- 3Critique the potential biases present in historical maps, such as the Mercator projection, and their impact on geographic understanding.
- 4Synthesize data from primary and secondary sources to create a compelling visual narrative of a historical event or geographic phenomenon.
- 5Explain how cartographic choices, like color palettes and symbol scales, influence the interpretation of geographic data.
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Gallery Walk: Map Critiques
Provide sample historical and geographic maps with issues like poor scale or bias. Students in small groups add sticky-note feedback on posters during a 10-minute walk. Regroup to discuss top critiques and redesign one map collaboratively.
Prepare & details
Explain how maps and data visualizations can support our arguments.
Facilitation Tip: During the Gallery Walk, assign each student a specific projection to compare against a globe and record measurements of distortion in a shared chart.
Setup: Wall space or tables arranged around room perimeter
Materials: Large paper/poster boards, Markers, Sticky notes for feedback
Pairs: Infographic Challenge
Pairs select data from a unit topic, such as population shifts post-Confederation. They create an infographic using free tools like Canva, focusing on one key argument. Pairs present for 2 minutes each, with class votes on most persuasive.
Prepare & details
Design an effective map or infographic to convey geographic information.
Facilitation Tip: For the Infographic Challenge, provide each pair with a rubric that emphasizes one design principle per round to focus their revisions.
Setup: Tables or desks arranged as exhibit stations around room
Materials: Exhibit planning template, Art supplies for artifact creation, Label/placard cards, Visitor feedback form
Small Groups: Data Viz Makeover
Give groups cluttered sample visualizations from geographic inquiries. They identify problems, then redesign for clarity using charts and maps. Groups share before-and-after versions in a 5-minute showcase.
Prepare & details
Critique the use of data visualization in various historical and geographic contexts.
Facilitation Tip: In the Data Viz Makeover, give groups a cluttered infographic and a clear objective (e.g., highlight population change) to guide their simplification process.
Setup: Tables or desks arranged as exhibit stations around room
Materials: Exhibit planning template, Art supplies for artifact creation, Label/placard cards, Visitor feedback form
Whole Class: Projection Debate
Display common map projections on screen. Class debates which best suits a scenario like showing Canada's Arctic claims. Vote and justify with evidence from quick research pairs.
Prepare & details
Explain how maps and data visualizations can support our arguments.
Facilitation Tip: During the Projection Debate, assign roles such as data advocate, map critic, or audience member to ensure all students engage with the content.
Setup: Tables or desks arranged as exhibit stations around room
Materials: Exhibit planning template, Art supplies for artifact creation, Label/placard cards, Visitor feedback form
Teaching This Topic
Teachers should model how to question visuals by thinking aloud during demonstrations. Use direct instruction to name common distortions (e.g., Mercator’s size exaggeration) and pair it with hands-on tasks. Avoid assuming students intuitively grasp the power of visual hierarchy; provide explicit scaffolds like annotated examples and checklist templates.
What to Expect
Students will demonstrate the ability to critique, revise, and present visual arguments that balance accuracy with persuasive clarity. They will identify distortions, streamline information, and justify design decisions.
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 the Gallery Walk: Map Critiques, students may assume all map projections are equally accurate.
What to Teach Instead
Give each student a copy of the same projection and a globe, and have them measure and record how Greenland’s size changes on the map versus the globe. Use a class tally to reveal the range of distortions and discuss why projection choices matter for specific arguments.
Common MisconceptionDuring the Pairs: Infographic Challenge, students may believe adding more colors and symbols improves clarity.
What to Teach Instead
Provide pairs with a cluttered infographic and a one-sentence prompt (e.g., 'Show where Indigenous reserves were located in 1870'). Have them remove elements until only the most critical data remains, then defend their choices to another pair.
Common MisconceptionDuring the Whole Class: Projection Debate, students may think data visualizations speak for themselves.
What to Teach Instead
Require each presenter to speak for exactly 30 seconds while the class listens without visuals. Then, allow the presenter to show their visualization and speak again. Compare how the same argument changes with and without visual support.
Assessment Ideas
After the Gallery Walk, students rotate in pairs to present their revised map drafts. Peers use a checklist to assess clarity, accuracy of data representation, and effectiveness in supporting the main argument, leaving one written comment per pair.
After the Infographic Challenge, provide two different visualizations of the same data. Ask students to write one sentence explaining which visualization is more effective and why, referencing specific elements like symbol choice or data grouping.
During the Data Viz Makeover, display a complex infographic related to Canadian geography. Ask students to identify one potential bias or distortion within the visualization and explain its possible effect on the viewer's interpretation via a quick written response.
Extensions & Scaffolding
- Challenge: Ask students to design a comparative visualization (e.g., side-by-side infographics) of a single dataset using different tools (e.g., Canva vs. hand-drawn), then present which tool best served their argument.
- Scaffolding: Provide a partially completed map or infographic with intentional errors for students to fix, focusing on one correction area at a time.
- Deeper exploration: Invite students to research and present how cartographers or data scientists address bias in their fields, connecting to a real-world case study.
Key Vocabulary
| Thematic Map | A map designed to illustrate a specific theme or subject, such as population density, migration routes, or resource distribution. |
| Data Visualization | The graphical representation of information and data, using elements like charts, graphs, and maps to help understand trends, outliers, and patterns. |
| Infographic | A visual representation of information, data, or knowledge intended to present information quickly and clearly, often combining text, charts, and images. |
| Cartographic Projection | A method of representing the three-dimensional surface of the Earth on a two-dimensional plane, which inevitably introduces distortions in shape, area, distance, or direction. |
| Scale | The ratio between a distance on a map and the corresponding distance on the ground, crucial for accurate spatial representation. |
Suggested Methodologies
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