CoordinatesA self marking exercise on identifying and naming coordinates (Mid points in four quadrants). 
Each square on the grid represents one unit. Type your answers without spaces but remembering the brackets and the comma like this (3,4)
The black lines are the axes and they cross at the origin.
What are the coordinates of the point which is in the middle (midpoint) of the green points? 

What are the coordinates of the point which is in the middle (midpoint) of the maroon points? 

What are the coordinates of the point which is in the middle (midpoint) of the red points? 

What are the coordinates of the point which is in the middle (midpoint) of the orange points? 

What are the coordinates of the point which is in the middle (midpoint) of the pink points? 

What are the coordinates of the point which is in the middle (midpoint) of the brown points? 

What are the coordinates of the point which is in the middle (midpoint) of the yellow points? 

What are the coordinates of the point which is in the middle (midpoint) of the blue points? 

What are the coordinates of the point which is in the middle (midpoint) of the purple points? 

What are the coordinates of the point which is in the middle (midpoint) of the lime points? 

InstructionsTry your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help. When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file. 



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Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for those learning Mathematics anywhere in the world. Click here to enter your comments. 
Don't wait until you have finished the exercise before you click on the 'Check' button. Click it often as you work through the questions to see if you are answering them correctly. You can doubleclick the 'Check' button to make it float at the bottom of your screen.
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Max, Australia
Tuesday, August 8, 2017
"I would just like to point out that in your section called "First Quadrant", which you advertised that it had questions that consisted of questions from the first quadrant, had questions that involved coordinates that were placed on the axis, which are not technically in the first quadrant. The class got very annoyed and would appreciate you changing this. Thank you."
Transum,
Tuesday, August 8, 2017
"Thanks for your observation Max. If the first quadrant is the region where both the x and y coordinates are positive then any point on either of the axes should not be included as zero is not a positive number. You are absolutely right.
Having realised that I would like to suggest that the inclusion of points on the axes makes the exercise slightly more challenging and worthwhile. I hope you'll agree.
Now Levels 1 and 2 are purely first quadrant without zeros and Level 3 contains zeros and fractional coordinates.
Thanks again for your comments."
Transum,
Monday, December 10, 2018
"Some people have trouble remembering what the two numbers in a set of coordinates represent. They could be thought of as the route to the point from the origin. The first number is the xcoordinate and tells you how many units you go across to the right (negative numbers move you to the left). The second number tells you how many to move up (negative numbers move you down).
The following saying helps you remember the order of the coordinates:
Along the corridor then up the stairs. "
Greg, Wales
Monday, August 26, 2019
"Excellent resource, I use it all of the time! The only problem is that there is too much good stuff here!!"