There are no more than six children in the class. They have notebooks with tasks, and the teacher has a laptop and a stopwatch on the desk. There is a large soroban in the classroom. Continue reading “How is the mental arithmetic class going?”
Basic concepts of mnemonics
- Artificial associations.

Mentally connecting several images in such a way that they are outlined by a continuous contour line. The brain is able to remember these images in one picture. In an artificial association, from two to five images can be linked at the same time. The association between items is fixed automatically.
Fine motor skills development

To solve the puzzle, it will have to be fairly twisted in your hands – up, down, left and right. This has a beneficial effect on the joints and motor functions of the body, as well as helps the formation of diction. Speech and motor skills are controlled by the same area of the brain. The Rubik’s cube trains your memory. During solving it, you need to calculate the sequence of actions and remember the algorithms. Beginners can keep in mind about eight combinations, and professionals – up to 200. After mastering the Rubik’s cube learning poems and formulas by heart will seem easier.
How to add and subtract on soroban?
The most important thing to remember when counting on soroban: “you need to keep the calculation from left to right”, and this is different from the usual way of counting. It is worth noting that counting techniques in mental arithmetic are different, but in the article, those ones are used, which recommended by the Japanese organization the Abacus Committee. You should start calculations with those numbers that in sum and difference give no more than nine when added and no less than 1 when subtracted. At first, examples are suitable:2+3, 1+8, 13+21 or 122+412.
How do I train my working memory?
According to Japanese scientists, the best way to train the brain is the mental calculation. The mental calculation is based on actively involving working memory, and working memory is a type of memory that stores information in the mind while we are working with it. It is often short-lived, but some theorists agree that they still differ from each other. Working memory can be used to manipulate stored information, while short-term memory only provides short-term data storage.

