I started general graphs with my math grade 8, they liked the idea of using grids just to get into familiar with the use of co-ordinate systems. The interesting part is that, I took this as a simple exercise, but was a little bit challenging to others. I used numbers for both axes so as not to confuse them when I introduce the Cartesian plane. It worked very well, they are Ok with the terminology of x-axis and y-axis, however some of them still struggle with which number to belongs to x and which one for y.
I will now introduce the negative part of the Cartesian plane.
Is this a good idea?
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