🎯 Learning Intention

Today, I will review the difference between raster and vector data and reflect on how each changes the way a map tells a story.

✅ Success Criteria

I can summarize one key difference between rasters and vectors and explain when one might be more useful than the other.

🌍 Why Are We Learning This?

Rasters and vectors are the two main building blocks of digital maps. Knowing when to use each is essential for accurate and meaningful GIS work.

🧠 Warm-Up – Tech Journal Prompt

💡 Think of an example where you would want a map to show detail (like roads or boundaries). Then think of an example where you would want to see patterns (like population density or vegetation). Which is vector, and which is raster?

📚 Vocabulary of the Day

Term Definition
Vector Data Points, lines, and polygons that show exact features (roads, buildings, boundaries).
Raster Data A grid of pixels, each with a value (elevation, land cover, satellite images).
Resolution The size of raster cells/pixels — higher resolution = more detail.

📣 Independent Reflection Task

Task: Complete the Raster vs. Vector Reflection Chart in Google Classroom.

  1. Watch the short video: Raster vs. Vector Data Explained (2–3 min, link provided in assignment).
  2. Fill in the chart:
Category Raster Example Vector Example Which is Better for This? Why?
Land Use
Transportation
Elevation
Emergency Planning

  1. Answer the critical question in a paragraph:

    “How does perspective and positionality affect whether you choose raster or vector data for a map?”