TY  JOUR
TI  TECHNIQUES OF SYSTEM-ACTIVITY APPROACH IN SECONDARY SCHOOL
KW  system-activity approach
KW  didactic principles
KW  techniques
JO  Scientific and methodological journal &quot;Science and education: modern time&quot;
AU  Kovalchuk, E.V.
PY  2017
IS  1
PB  Non-state educational private institution of additional professional education &quot;Expert-methodological centre&quot;