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Toru Kumon (公文 公, Kumon Tōru, March 26, 1914 – July 25, 1995) was a Japanese mathematics educator. He was born in Kōchi Prefecture , Japan. He graduated from the College of Science at Osaka University with a degree in mathematics and taught high school mathematics in his home town of Osaka.
Kumon (the company) gained 63,000 students over its first 16 years. In 1974, Kumon published a book titled The Secret of Kumon Math, leading to a doubling of its size in the next two years. [2] Kumon opened its first United States locations in 1983, [3] and by 1985, Kumon reached 1.4 million students. [2]
Elementary mathematics, also known as primary or secondary school mathematics, is the study of mathematics topics that are commonly taught at the primary or secondary school levels around the world. It includes a wide range of mathematical concepts and skills, including number sense , algebra , geometry , measurement , and data analysis .
Kumon-Tok is mostly filled with jokes about tall stacks of homework and anxiety-inducing timed tests, a common experience that represents a few laughs and stellar mental math skills years later.
Signs of trigonometric functions in each quadrant. All Students Take Calculus is a mnemonic for the sign of each trigonometric functions in each quadrant of the plane. The letters ASTC signify which of the trigonometric functions are positive, starting in the top right 1st quadrant and moving counterclockwise through quadrants 2 to 4.
The Major System can be combined with a peg system for remembering lists, and is sometimes used also as a method of generating the pegs. It can also be combined with other memory techniques such as rhyming, substitute words, or the method of loci. Repetition and concentration using the ordinary memory is still required.