Mark the position of points specified by coordinates in the first quadrant of a coordinate grid | Maths

Starter quiz

Look at the table. Which line is horizontal?
- Line A
- Line B ✓
- Line C
Look at the table. Which line is vertical?
- Line A ✓
- Line B
- Line C
Complete the description. The polygon has been translated ______ squares right from A to B.
- '4' ✓
The polygon has been translated ______ squares up from A to B.
- '3' ✓
Describe the translation of the polygon from A to B. 2 squares left. ______ squares down.
- '3' ✓
Sofia translates a polygon 5 squares left and 3 squares down. Describe the translation to get it back to its original position.
- 5 squares up and 3 squares right.
- 5 squares right and 3 squares up. ✓

Exit quiz

Match the definition to the correct word.
- Origin
  
  ⇔
  
  Where the x-axis and y-axis cross. ✓
- Coordinates
  
  ⇔
  
  A set of values that show an exact position. ✓
Match the different parts of the grid to its name.
- Label A
  
  ⇔
  
  y-axis ✓
- Label B
  
  ⇔
  
  origin ✓
- Label C
  
  ⇔
  
  x-axis ✓
True or false? When plotting points, you must go across and then up. You cannot do it the other way around.
- True ✓
- False
What is the coordinate marked on the grid?
- (3, 4) ✓
- (4, 4)
- (4, 3)
Sofia and Jacob are playing a game of Alien Treasure. Jacob says ‘My treasure is at the coordinate (1, 2).’ Which colour is his treasure?
- Green ✓
- Blue
- Red
- Yellow
What are the coordinates where the lines cross?
- (2, 3)
- (3, 2) ✓
- (4, 2)

Worksheet

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Presentation

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Lesson Details

Key learning points

The horizontal distance from the origin is recorded first.
Points on a coordinate grid are measured from the origin.
Points have a horizontal and vertical distance from the origin.
Points are marked where the lines of the grid cross.

Common misconception

Pupils might not start counting from the origin (0,0) but from another point on the grid, leading to incorrect placement of the point.

Emphasise the importance of always starting from the origin when plotting or describing coordinates. Have students physically point to or touch the origin before plotting any point.

Keywords

Origin - The origin is where the x-axis and y-axis cross.
Coordinate - Coordinates are a set of values that show an exact position.