Author
Jae Chan Ahn
30 titles available
Mathematics-Spider, Prime Factorization, Integer and Rational Numbers, Variables and Their Operations
Changing the World of Quadrilateral with the One Additional Condition
The Role of Antennae, the Tactile Organ
Advanced Industrial Technology Utilizing the Tactile Sense of Animals and Plants
Role of Skin to Protect Your Body
The Importance of Touch
The world of the most beautiful figure in the world, circle
Understanding the Principles of Multiplication Through the Concept of Multiples
You can easily calculate the days on the calendar by understanding the number table
Numbers that are in short or exceeding, and the concept of remainder and dividend
Calculating in sequence allows for easily solution in problem solving
The world of polyhedral that the Earth is comprised of
Expressing the possibilities in numbers and judging based on the given conditions
How to Calculate Money You Value
Minesweeper Where You Predict and Check the Results Yourself
Mathematics Within the Mirror That Makes Movement and Symmetry of Geometric Figures Vividly Visible
Mathematical tools that allows for the understanding of length, time and volume
Addition and subtraction that are included within consecutive integers and alphametic puzzle
How Can Tastes Keep You Safe?
Understanding the code behind the rules of operation
The principle of a scale that can measure the amount and condition of an object
Beautiful Number Sequence Within the World of Nature
Reduction of common denominator by using divisor and multiples
Making beautiful shapes with tessellation and tangram
How does each taste help my body?
How many different flavors can you taste in foods?
Methods for Counting Numbers and the Understanding of Arithmetic
Knowing how to make pairs can allow one to create league and tournament chart
Principles of magic square that is found within a collection of number
Role of Multiples and Divisors in Building and Dividing Numbers
About Jae Chan Ahn
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