Volens Vasily Petrovich

He studied at the physico-mathematical faculty of St. Petersburg University, was a mathematics teacher and an expert on the educational part of the St. Petersburg City Committee on public education. In 1860 took part in editing "Table Dictionary of Toll's (1863 - 1866) and" Supplement "to him (1875 - 1877) was a regular contributor to the" voices "in the eighties - editor of the magazine to help the mothers'. Compiled by several widely used textbooks: "A Guide to Arithmetic" (St. Petersburg, . 1863, . 14 edition, . ib., . 1885), . "Collection of arithmetic problems" (ib., . 1866, . 14 edition, . 1885, . 2 hours), . "The initial reason astronomical geography" (ib., . 6 th edition 1872), . "Algebra" (ibid., . 1871), . "Elementary Geometry" (ib., . 1872, . 2 nd Edition, . 1876), . "Elementary Geometry" (ibid., . 1871), . "Book of problems for public schools" (4 th edition, . 1880), . "The method of teaching basic arithmetic in the schools" (Saint-Petersburg, . 1880) and others,