About the Author

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about Kay - Math Teacher and Author - Teaching student and school Branksome Hall Asia(CA) North London Collegiate School(UK) Korea International School(KR) St. Johnsbury Academy(US) Canadian International School of Beijing(CN) - Writing field ACT Math New SAT Math and SAT Subject test Math level2 IB Math(SL and HL) Critical math and Word form math practice - Education/Academic background: D. Eng.(graduate school doctor of engineering)