The previous page is sending you to http://nsportal.ru/nachalnaya-shkola/matematika/razvitie-logicheskogo-myshleniya-na-urokakh-matematiki-u-mladshikh-shko-%D1%81%D1%82%D0%B0%D1%82%D1%8C%D1%8F.

 If you do not want to visit that page, you can return to the previous page.