True..thanks.

Thank you, i did not know it, so this just started this year it looks? If i sum it up clvery crudely, is it like a Gsce paper, but only the hardest topics and harder questions? I will look into it.

I knew underground Maths, but not well enough to see there were some stuff accessible to GCSE, thanks.

I am new to this (both profession and bluesky), but curious if there ever was a #WeeklyFails ?

Not that i want to ruin the atmosphere but it might prove quite informative and useful as well? I'm sure I will be able to share a few.

Squeeze theorem or "two policemen" theorem in France, or also "two cops and a drunk" theorem in some quarters.
Sorry for the disgression and poor contribution to your issue.

But I am not saying this means it is better this or that way...

As an example, you can go through all ks3/ks4 content without ever defining what a plane is, and what it means for two planes to be parallel...whereas this was probably something i was shown early in my secondary education...

Thanks for the feedback. With my limited experience, it just feels a bit light in England, compared to how I remember it being taught to me (quite some time ago...and in another country)

This is just based on my distant and foggy school memories of ks3 geometry.

I was a ks3 student a long time ago and in a different country, but my superficial impressions is that the curriculum remains quite light and not very rigorous..?

Great pairing

This constraint was there just in the context of UK maths education. I doubt euclidean axioms or its closely linked propositions are ever mentioned (even if we keep on going about angles in polygons...)

Yes, maybe a bit of an ambiguous constraint...2 sides are perpendicular to same side so they are parallel. Then, as those 2 sides are parallel, as one is perpendicular to the last side then other is also perpendicular to it. Hence last angle is 90° as well.