Artigos educativos sobre o soroban, o cálculo mental, seus benefícios e como aprendê-lo.
Learn about the soroban (the Japanese abacus): its history, its parts, and how it is used to teach fast mental math to children and adults.
Ler artigo → (5 min de leitura)Discover the benefits of learning the soroban for kids: focus, memory, mental calculation speed and self-confidence, and the best age to start.
Ler artigo → (6 min de leitura)What is anzan? Learn how the soroban becomes a mental image that lets you calculate quickly without an abacus, and how to train it.
Ler artigo → (4 min de leitura)A practical beginner’s guide to learning the soroban from scratch: representing numbers, addition, subtraction, multiplication and division, with tips for effective practice.
Ler artigo → (7 min de leitura)A comparison of the Japanese soroban, the Chinese suanpan and the abacus: number of beads, calculation method, and which is best for learning.
Ler artigo → (5 min de leitura)Practical steps to teach your child the soroban at home with no prior experience: setup, a daily practice schedule, and how to make learning fun.
Ler artigo → (6 min de leitura)When should a child start learning the soroban? The ideal starting age, signs of readiness, and whether younger or older learners can do it.
Ler artigo → (4 min de leitura)How long does mastering the soroban take? The factors involved, an approximate timeline by level, and why consistency matters.
Ler artigo → (5 min de leitura)A simple explanation of the complement rules on the soroban: friends of 5 and friends of 10, with tables and practical addition/subtraction examples.
Ler artigo → (6 min de leitura)Learn the correct finger movements on the soroban: when to use the thumb and when the index finger to move earth and heaven beads quickly and accurately.
Ler artigo → (4 min de leitura)A step-by-step explanation of multiplying two-digit numbers on the soroban using partial products and correct place placement.
Ler artigo → (6 min de leitura)Learn division on the soroban place by place in a simple way, with a fully worked example, and how division relates to multiplication.
Ler artigo → (5 min de leitura)What is Flash Anzan and how do you train it? Exercises to speed up mental calculation and strengthen visualizing the abacus without using it.
Ler artigo → (4 min de leitura)Is learning the soroban only for children? We explain how adults learn mental math, the benefits, and a practical starting plan.
Ler artigo → (4 min de leitura)Learn about the soroban level system: Kyu and Dan grades, what the exams include, and how to progress between them.
Ler artigo → (5 min de leitura)