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Mapping & Cartesian Co-ordinates

November6

Goal

I can use a Cartesian grid system for location

 

APK

Discuss where the different objects are

 

Application

GO TO HOTMATHS- YR 6-

Geometry & position
The Cartesian plane

Year 5s- work on widget:  plotting pictures then Hotsheet “Reading co-ordinates”

yr 6s work on widget: the four quadrants then Hotsheet “Join the dots”

As you work, take notes on these 2 questions:

  • WHAT CAN GET CONFUSING?
  • WHAT RULES DO YOU THINK THERE ARE FOR THIS SYSTEM OF LOCATION?

FURTHER EXPLORATION:

Create a Cartesian plane on your page and create a shape (or picture using straight lines drawn between points-e.g. a house) using ruled lines

Identify the co-ordinates for all your corners (make sure they are on the corners of a square).

Share with a friend to see if they can make it- START SIMPLE

http://flash.topmarks.co.uk/4150    http://flash.topmarks.co.uk/4941

 

New Information

Share answers to the 2 questions

Cartesian co-ordinates pinpoint the intersection of lines….

Often maps use a similar system, but instead of pinpointing the intersection of lines they work on the gaps between an locate an ‘area’ instead of a ‘point’. Maps also often use a combination of letters and numbers

The convention is that the x or horizontal co-ordinate is always given first

 

Goal Reflection

What can be tricky when using Cartesian co-ordinates? What are your top 3 tips when you use them?

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