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Johnson

Explore the world of math together!

Hello, my name is Johnson. I grew up in China and got my double undergraduate degrees in math and software engineering in China. I pursued my master's degree in Stony Brook University with the major of mathematics. statistics. Thus, I have a solid foundation of mathematics among several subjects. Now, I work as a math content developer in a publishing company. I develop problems and solution processes for the online math courses among different levels. I'd like to help you explore the wor...

geometry


prealgebra


precalculus


trigonometry


SAT math


probability


ACT Math


Chinese


algebra 1


algebra 2


calculus