# ### Course information

Welcome To Abacus Mental Arithmetic Education Center!

Makes number concept and mental arithmetic skills using an abacus of the kindergarten & elementary school students fast

[Hi Abacus Lesson 1]is an innovative program that makes number concept and mental arithmetic skills using an abacus of the kindergarten & elementary school students fast, improves correct 'numbers concept and calculation ability'.

[Hi Abacus Lesson 1] is different from calculating with paper and pencil. It is a program that can calculate addition. subtraction, multiplication and division with mental arithmetic skills using an abacus 2~3 times as quickly, easily and with fun.

[Hi Abacus Lesson 1] Improves IQ by improving mental arithmetic ability, calculation ability, logicality, and thinking skills through learning training with mental arithmetic skills using an abacus.

Learning Target

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Learning is possible from the age of 4

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Students who wants to improve calculation ability in the short term

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Students who calculation ability falls slightly as elementary school lower graders

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Students who are often wrong in operation calculation mistakes and problems that know

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Students who lose interest and are not confident in math

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Students who calculation ability is better than others from childhood

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Students who want to build mental arithmetic skills in elementary school

Lecture configuration
Consists of total 12 levels(40 lessons) and can study weekly.
LevelLearning Content
1 Lesson 1- Get to know number and place on the abacus to try
Lesson 2- Addition from 1 to 4
Lesson 3- Subtraction from 1 to 4
Lesson 4- Mixed addition and subtraction up to 4(plus, minus 1.2.3.4)
2 Lesson 5- Addition from 5 to 7(plus 5,6,7)
Lesson 6- Addition from 8 to 9(plus 8,9)
3 Lesson 7- Subtraction the number to 9(from 1 to 5)
Lesson 8- Subtraction the number to 9(from 6 to 7)
Lesson 9-Subtraction the number to 9(from 8 to 9)
Lesson 10- Mixed addition and subtraction up to 9
4 Lesson 11-Friend number of addition for 5(plus 1, 2)
Lesson 12-Friend number of addition for 5(plus 3, 4)
5 Lesson 13- Friend number of subtraction for 5(minus 1, 2)
Lesson 14- Friend number of subtraction for 5(minus 3, 4)
6 Lesson 15- Addition: Complementary numbers for 10(plus 1, 2)
Lesson 16- Addition: Complementary numbers for 10(plus 3, 4)
Lesson 17-Addition: Complementary numbers for 10(plus 5, 6)
Lesson 18-Addition: Complementary numbers for 10(plus 7, 8, 9)
7 Lesson 19- Subtraction: Complementary numbers for 10(minus 1, 2)
Lesson 20- Subtraction: Complementary numbers for 10(minus 3, 4)
Lesson 21- Subtraction: Complementary numbers for 10(minus 5, 6)
Lesson 22- Subtraction: Complementary numbers for 10(minus 7, 8, 9)
8 Lesson 23- Friend number of subtraction for 5(2)(minus 1, 2, 3, 4)
Lesson 24- Addition using 10&5(plus 6, 7, 8, 9)-Figures with the shape
Lesson 25- Subtraction using 10&5(minus 6,7,8,9,)-Figures with the shape
9 Lesson 26- Mixed calculation 2 digit &1 digit