Fascinating to see the numbers you chose. I finished Grade 6 in Russia (in 1995) before emigrating to Canada. I didn't learn anything new in Math class until

Fascinating to see the numbers you chose. I finished Grade 6 in Russia (in 1995) before emigrating to Canada. I didn't learn anything new in Math class until mid-Grade 11 [1]. [1] Except Trigonometry. But I could tell the way it was taught was completely different from the concepts I learned in the Soviet/Russian system. It was just rote memorization of sin/cos/tan - just clever formulas for deriving the angles and edge lengths of triangles that you solved by pressing the SIN/COS/TAN buttons on your calculator, rather than the "from first principle" explanation of what these concepts meant fundamentally.