My son has had problems with mathematics since the 1st grade, and it didn't work out with the humanities either. I enrolled him in the mental arithmetic course "Smartum". Within a month, excellent results became visible: he learned to count quickly in his mind, improved mathematics and English, and teaches poetry once or twice! Of course, we are still far from being a genius, but compared to how he studied before, now there is a positive result! We will continue to come here, because the classes are really effective, and they do not take up much time: only two lessons once a week for 45 minutes each.