

The addition is a foundation to get start in math.
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Basic guides for website teaching.
Use the image concept of the surrounding environment of the living space to replace the calculation of simple numbers, and use such image expression to make the teacher and learner feel it friendly at a glance. It is easier for children to understand and absorb, instead of just giving them hard numbers. With the image of life, children will feel to understand and absorb more.
Addition operation uses the image concept of the living environment to combine numbers and add the numbers to get the addition. And by the length represents the size of the number, the addition of the number and the number will make the number larger and the length longer, which is easy to understand.It is also easier to understand and absorb rather than just reciting.
By arranging numbers, step by step, 1,2,3,4,5,...step by step, from small to large, children can learn mathematical operations step by step and construct the sense of mathematical numbers.
Welcome to click here all the contents of the interactive function of addition operation, and the application will teach children to learn mathematics in a simple way.
Welcome click here to construct the children sense of mathematical numbers.
Subtraction is the opposite of addition. If children have a good foundation of addition and proficient in addition, they are fully prepared for subtraction. In some others, the crosses,... crosses are used on subtraction. The crosses represent the subtracted numbers. The subtraction operation here uses the image color to gradually fade. children feels like a pigeon flying away, a fish swimming away, and the number becomes smaller. Now, children have different feeling. By arranging numbers, step by step,1,2,3,4,5,... step by step, from small to large, children can learn mathematical operations step by step and construct the children sense of mathematical numbers.
The multiplication operation makes the children feel that multiplication is the same numbers increased, cumulative addition, cumulative change to get the multiplication. The combination of the same numbers, the addition of the same number, stacking up the same number becomes a multiplication operation. When reciting the multiplications, it is easy to get the help of images to deepen the impression. It's like playing with jigsaw puzzles or building blocks, stacking layers of numbers on top of each other will produce changes in numbers, which are easier to understand and absorb, rather than mere recitation. By arranging numbers, step by step, 1,2,3,4,5,...step by step, from small to large, children can learn mathematical operations step by step and construct the sense of mathematical numbers.
Similarly, division is the opposite of multiplication. The operation of division must be based on multiplication. If children are proficient in multiplication, the operation of division can be handy. A number is allocated to the same amount, and the image is used to let students understand that the numbers are evenly allocated, and the division operation is obtained. By arranging numbers, step by step, 1,2,3,4,5,...step by step, from small to large, children can learn mathematical operations step by step and construct the children sense of mathematical numbers.
Arrange the numbers from small to large, and the content is simple and easy to understand. It is not difficult for the instructor who is skilled in addition, subtraction, multiplication and division.
Smoothly guide learners into the learning situation, we bless all teachers and learners.
The download version of the addition operation provided on the Internet contains all the content of the interactive functions. You can also download the addition operation to help children on interactive learning. On the Internet, including all the content of the calculation exercises, repeated exercises to get the best learning effect.
If you order online, there will be interactive functions, questions to guide learning, and constructive calculation exercises.
By arranging numbers, step by step, 1,2,3,4,5,...step by step, from small to large, children can learn mathematical operations step by step and construct the children sense of mathematical numbers.
Welcome click here to construct the children sense of mathematical numbers.
3 different teaching ways are prepared for each kind of operation.
When teaching, you can apply suitable teaching methods according to different levels.
Please click to reach basic practice.
Please click to reach advance practice.
Please click to reach review practice.
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8 9 ..............,
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123merry launch a beautiful Math world exploration for children.
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123merry, an invaluable math tool improves the math-phobic Children in his math skills.
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Children get greater math confidence.
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Notice that the equation is changed interactively when the cursor was moved closely.
Find the right way 123merry to learn math and have fun.
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The learning of addition practice is a necessary foundation for students to get started.
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1+1=2
2+2=4
3+3=6
4+4=8
5+5=10
6+6=12
7+7=14
8+8=16
9+9=18
10+10=20
2×1=2
2×2=4
2×3=6
2×4=8
2×5=10
2×6=12
2×7=14
2×8=16
2×9=18
2×10=20
This book succeeds in using cute illustrations to draw children into the beautiful world of math. It allows children to personally reason about numbers and realize the relationship between them, similar to how the keys of a piano come together to make a melody. I believe that this way of learning will provide lifelong benefits to the children. I think this book is strongly worth recommending and for parents and their children to read along together.
Professor Lin Tai-Chia, National Taiwan University
p.s. National Taiwan University is the 69th top in the world 2019.


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123 +
ISBN:9789574366767
123 -
ISBN:9789574366774
123 x
ISBN:9789574366781
123 ÷
ISBN:9789574366019
“Early childhood education is the most critical stage of learning; a poor early start will have lasting effects on later development. In my own personal experience, I have found that students often have the most trouble with mathematics. It is truly a shame that many students often give up on math due to falsely perceived difficulty. Teacher Huang's innovative new work, 123 Easy Teaching, is the result of many years of teaching experience. This book series addresses the needs of youth education and eliminates the difficulties and bottlenecks frequently encountered during the elementary learning process. This allows children to gain confidence in their mathematic abilities, furthermore, it allows them to learn happily without struggle. These books are vital to providing a solid arithmetic foundation for children.”
Zhang Huatang, President of Hukou Senior High School

Acknowledgements
The creation of 123 Easy Teaching would not have been possible without the invaluable advice from established educators in the field. I would like to specially thank the following individuals for their approval:
⦁ Professor Lin, Mathematics Department, National Taiwan University
⦁ Professor Huang, Applied Math Department, National Dong Hwa University
⦁ Professor Fu, Applied Math Department, National Chiao Tung University
I would like to thank Professor Lin of National Taiwan University for his ideas on improving the text. In addition, I would like to thank the dean Bao of Northeast Agricultural University and Principal Zhang of Hukou High School for their sagacious advice. For many years, they have propelled their many students to academic success. I extend my gratitude to the dean Li of National Tsinghua University for establishing a youth education foundation, to guide students with their homework and guide them along with the course material. I would also like to thank the internationally renowned Director Liao of Academia Sinica, the national academy in Taiwan, for his praise. To all of these individuals, I would like to once again expressed my heartfelt gratitude.
To receive the recommendations regarding 123 Easy Teaching from these scholars has been an honor. I also hope that this work can received widespread support and use, so please spread the word to help support children everywhere have a smooth introduction to arithmetic.
Note: Academia Sinica was founded in 1928 in Nanjing, with Dr. Cai Yuanpei as the first director. Now Academia Sinica is locate in Taipei, with Dr. Liao Junzhi as the director. The academy has fostered brilliant minds such as that of Yuan T Lee, the first Taiwanese Nobel prize laureate, who acted as the academy directed from 1994 to 2006.

According to the logical sequence and regularity of the traditional 9* 9 multiplication table , the logic of various operations is editted in 123 Easy Teaching. The primary school students are familiar with such a nature when they learn the addition and subtraction.
Practice makes perfect, if the 123 Easy Teaching is applied to learn addition and subtraction well, the students are able to be very accustomed to use such a nature to learn the nine-nine (or 12* 12 ) multiplication table in the future.
"We believe every child can become a numerate adult. " This Book 123 Easy Teaching makes children totally change their calculating habits, and children are able to get the calculating results as quickly as adults.

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Full of fun, impress your children and students understand mathematics more intuitively!
Preface
Recently, the British Ministry of Education has begun to question the value of rote memorization of multiplication tables and the notion that not memorizing one’s multiplication tables will result in inferior arithmetic abilities. One senior official has proclaimed that if Britain does not change the way mathematics is taught in schools, then the British economy will decline. In 2016, Britain decided to continue having children memorize the 12x12 multiplication table. However, when elementary school principals visited China, they were shocked by the 9x9 multiplication table in use there.
Memorizing the 9x9 multiplication table is greatly beneficial for young children studying math. Furthermore, developing fundamental arithmetic skills is similarly critical to developing a child’s confidence in math.
Visual learning has been demonstrated to be one of the most effective methods of teaching to children. The visual aids in 123 Easy Teaching are simple yet clear, allowing for children to learn the intuitions behind arithmetic. Through consistent and thorough study, children will subconsciously develop confidence and a rich interest towards math. We hope that all the students and teachers using this book will have this kind of experience.
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Notice that the equation is changed interactively when the cursor was moved closely.
Because the fixed graphics JPG files were posted on site, so there is no interactive effect on site.
If you want to experience dynamic teaching effects, please download the interactive pdf file, welcome to download and get the interactive functions. After downloading, experience the new learning method, interactive learning on PC. The computers with larger screens, such as notebook computers are suggested. Smart phones do not support the interactive functions (nor tablet).
Currently, because the (amazon) e-book readers are temporarily unable to get interactive function on the e-book readers.
If you want to have interactive features, please download the following interactive pdf files on the site. Welcome to experience the interactive teaching and share 123 site to more people to increase the fun of learning.
Click here to continue interactive features demo 1 on youtube.
https://youtu.be/0JVufaSat7k
Click here to continue interactive features demo 2 on youtube.
https://youtu.be/3ZcJpUYHGH8
© 2018 - 2019 Huang Yu Chih. All rights reserved.
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It depends on where you are. The website links to Amazon ( ex. Amazon US) , if you are in the United Kingdom, the United States, India, etc., you can order Amazon to order e-books. However,
However, currently because the (amazon) e-book readers are temporarily unable to get interactive function on the e-book readers.
Where can I find the subscription version on the website? Can I download it?
The "Subscriptions to Download eBooks " is accompanied by some subscription files that can be downloaded ( after ordering ).
Nobel-level masters and mathematics professors and scholars jointly recommend.
We hope that the children in the study will lay the foundation for mathematics and all the learning. Wish they have more happy explorations to prepare well for the road to be the scientists, even the Nobel Prize in the future.
“From this book I can clearly see that you (the author) are dedicated to the fundamentals of education. I believe that many children will be able to appreciate the beauty of math.”
Director Liao Junzhi, Academia Sinica
Dr. James C. Liao , present President, Academia Sinica 2016 -
Dr. James C. Liao, present President, Academia Sinica 2016 -
( and tsmc Dr. Morris Chang )
Dr. James C. Liao has been named co-winner of the 2013
Eni Prize for renewable energy research.
Awarded from President of Italy
123 Easy Teaching is to explain the Addition, subtraction, multiplication, division, representation of various operational images, and the process of constructing arithmetic, to enhance children's understanding. The child is able to be familiar with the results of calculations, and leave a deep impression on the mind by reading 123 Easy Teaching .
The two world scientists have extraordinary achievements in their respective fields. Their fields are different, they both have won the world-class ultimate awards in their respective fields.
They both have served as President, Academia Sinica. Fortunately, the current President, Academia Sinica recommends 123 Easy Teaching.
After you read the content of this website, there will be such a feeling. 123 Easy Teaching is very helpful to the children's arithmetic guidance.
If you want to quickly understand the efficiency and effectiveness of 123 Easy Teaching to get the effective and effective learning methods on arithmetic, you can directly click "(+ − × ÷) Door Open" to see the guide of the book. It explains the important concepts and design features.
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There are 123 Easy Teaching download areas to make teaching easier for parents and teachers, and children are more happy to learn math and get higher math scores.
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Wish more, even all teachers and parents will enjoy the children's learning.
For more, please refer to the "(+ − × ÷) Door Open" or from the menu " 123 Info. " , you can find more detailed explanations.
The website has a complete architecture of arithmetic operations and interesting pictures. Try it out. Let's take a look at this website. It is worthy of your and recommendations, guiding children into a happy paradise for learning arithmetic operations.
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