TY JOUR TI Continuity in Training Primary School Students and Fifth- and Sixth-Graders on How to Solve Mathematical Problems KW continuity in education KW approaches to mathematical problems solving KW stages of operating with problem solving situations, development of problems solving skills KW educational techniques. JO Primary Education AU Burlakova, T.. AU Tselishcheva, I.. PY 2015 IS 3 PB INFRA-M Academic Publishing LLC.