TY JOUR TI Electronic Textbook: Pros and Cons KW information technologies KW specifics of electronic editions KW informational security of junior school pupils KW accounting of junior school age children’ needs KW thinking and speech development KW natural kinds of elementary school pupils’ activity KW medical and hygiene requirements. JO Primary Education AU Vinogradova, N.F. PY 2014 IS 2 PB INFRA-M Academic Publishing LLC.