Abacus Mind Math Instruction Book Level 1: Step by Step Guide to Excel at Mind Math with Soroban, a Japanese Abacus: Volume 1 (Abacus Mind Math - ... Book, Workbook 1 of 2, Workbook 2 of 2)

Nice, useful but pricey

I tried this for fun. Blown away at the speed I can do simple calculations. Can be faster than punching numbers into my phone if learned correctly. If I ever have children, I will certainly teach them the Soroban. It’s given me a new appreciation for simple addition and subtraction.

Excelente libro con conceptos fáciles de explicar. Ayuda a tu hijo a entender los conceptos del ábaco japonés. Muy buena calidad de impresión y buenos contenidos.

J'ai acheté ce livre en espérant trouver une introduction plus complète à la méthode de calcul mental avec un boulier. Malheureusement, j'ai été très déçu par le contenu. Pour un prix aussi élevé, le livre ne propose qu'une initiation très basique et très superficielle, s'arrêtant à des exercices simples qui ne justifient absolument pas l'investissement.

I bought this book in combination with both of the workbooks. This system has transformed the way my daughter views numbers, her capabilities and intelligence, her school experience, and our relationship. She has had trouble with number concepts and operations since she started school, and she is now third grade. We spent hours every night doing the one or two sheets of homework she was assigned. She didn't understand grouping, number lines, those drawings of blocks, lines and dots, the number machine--none of it. She tested "within normal range" at school, but anything she couldn't count on her fingers was difficult for her to comprehend. We dreaded homework every night, and more often than note one or both of us ended up crying. It was creating a rift--I felt so frustrated and powerless, and I lost my patience often. I was worried that she was reaching the age that she would fall behind the other kids, or she would just push it aside rather than struggle with it, with me. I knew i had to give her a different way to look at numbers. When I was in high school, someone came to our Japanese class one day and taught us how to use the soroban (abacus). I learned how to use it in about ten minutes, and I remember we were doing lots of different operations within the class period (not that I remember them now). So I found this system online, and purchased it, as well as a soroban. For a few weeks, she fought me--she didn't want to take the chance of failing at this too. But once she tried it, she got it in a snap. Within one session, she was able to use the abacus to add and subtract numbers she would have struggled with on paper, and would have been impossible for her to do in her head. We spent extra time on the abacus part, so that she was extremely comfortable and confident when we moved onto mental math. We have only been doing the mental math section 10-15 minutes a day, three days or so a week, and she can already add and subtract pretty much any non-carrying number less than 100--in a series of three to five equations (eg. 10+25-30+2-1+17). In her head! I have to use the abacus to keep up with her. I am so proud of her, and thankful for this system.

Super