This PowerPoint is excellent and dispels some common misconceptions regarding coordinate geometry, but I will definitely break it down for KS3 students and use it as a recap at the end of the lesson or if I think the activities need to be changed.

This looks like a minefield - perhaps one to use if you have plenty of time to got through all the misconceptions you unearth!

This is a good concept as students would probably like to show where their teacher is wrong! I would use as a summary rather than a starter.

Thanks, it’s very useful.