What is the rule for taking a 4 figure grid reference?
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What is the rule for taking a 4 figure grid reference?
Four figure grid references locate a grid square (usually 1 km square) on a map. The four figure grid reference is always given for the bottom left hand corner of the square (the South West corner) and you always write the Eastings before the Northings [Hint: Along the corridor and up the stairs].
What is a 4 point grid reference?
Four-figure grid references are used to locate a particular grid square on a map. We to the eastings (horizontal number) first and then the northings. You can remember this by saying, ‘along the corridor and up the stairs’.
What is a grid reference ks1?
A grid reference tells you where something is on a map. There are two parts to a grid reference: The 1st letter or number tells you how far across the map something is. The 2nd letter or number tells you how far up the map something is.
How do you teach a 4 and 6 figure grid reference?
Grid references
- First, find the four-figure grid reference but leave a space after the first two digits.
- Estimate or measure how many tenths across the grid square your symbol lies.
- Next, estimate how many tenths up the grid square your symbol lies.
- You now have a six figure grid reference.
How accurate is a 4 figure grid reference?
four-figure grid reference, such as ’19 45′, indicates a 1 km by 1 km square on the map; and. six-figure grid reference, such as ‘192 454’, indicates a 100 m by 100 m square on the map.
How do grid references work?
These grid lines help you to pinpoint an exact location anywhere on the map. The vertical lines are called ‘eastings’, as they increase in value as you travel east on the map. The horizontal lines are called ‘northings’ as they increase in value as you travel north on the map.
What is the rule for reading grid references?
When taking a grid reference, always read left to right along the bottom or top of the map first and then bottom to top along the side of the map. This is particularly important in an emergency situation.
How do you do a grid map?
Using the ruler, draw a rectangle on the map around the entire city area. Divide the rectangle into 1-inch grid squares. Beginning at the bottom, measure up 1 inch and draw a parallel line from left to right on the horizontal. Measure up another inch and draw a parallel line until you have less than 1 inch to the top.
How do you read a grid map?
When giving a grid reference which should be given first?
As we already said, when giving a four-figure grid reference, always give the eastings number first and the northings number second. An easy way to remember this is to keep in mind the letters HV (High Voltage), that is horizontal reading first followed the vertical reading.
