Lesson 65: Scale Drawings, Grids & Maps
Lesson 65 Learning Objectives:
Determine actual distance from scale drawings
Identify and describe the location of points and objects on a grid
Place points and objects on a grid at a given location
Embedded Files
Math Talk:
See Math Talk image below
Use these tools to play with grid mapping in Polypad: grid paper background, number line, polygons, patterns and art . Here is an example. What story could your map tell?
Reflect:
Reflect in your math journal. Draw, create or write to share your thinking. See Lesson guide 65 for more reflection questions, real life anchoring, playful explorations and creative invitations.
Two maps both show the same trail. One says it’s 5 cm long, one says 10 cm. Which one shows the real trail better?
If a tree is at (2,5) and a bench is at (6,5), how far apart are they on the grid? If each square is 1 m, what do you need to determine the real distance?
How do points on a grid become meaningful? What stories do they tell?
If a grid is like a neighborhood, what makes it easy or hard to tell someone where you live?
When a tiny drawing stands in for a big real thing (like a map of your school), how does the small one “remember” the large one? What gets lost? What can be better seen? How do you know differently when the size changes?
Math Talk:
Have a conversation about this image. Be curious. Be creative. Can you see in different ways?
What numbers and patterns do you notice? How do you see? How and what can you count?
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