@article{Pavlova2021the, author={Pavlova, O.A. and Surovceva, A.O. and Yakushkina, E.V.}, title={The Use of Non-Standard Problems with Matches When Teaching Younger Schoolchildren}, journal={Primary Education}, publisher={INFRA-M Academic Publishing LLC.}, year={2021}, pages={19-25}, volume={9}, issue={3}, }