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by bigger_cheese 2642 days ago
Yes this was my experience in Australia as well we did not have separate "Algebra", "Geometry", "Calculus" etc classes it was all just 'Mathematics'.

From memory I think concepts from Calculus were first introduced in year 10/11 via geometry (plotting curves and finding points of inflection) from there derivatives just made a lot of sense - slopes as a rate of change and all that.