@article{education2015312B1,
author={A., Tarasenkova N.},
title={Non-verbal Shells of the Instructional Mathematical Content},
journal={American Journal of Educational Research},
volume={3},
number={12B},
pages={1--5},
year={2015},
url={http://pubs.sciepub.com/education/3/12B/1},
issn={2327-6150},
abstract={The article is an exposure to semiotic-symbolic peculiarities of non-verbal means which are the images of geometric shapes in school math, analytical configurations of some facts which are under study in secondary schools. The article details on their array and use in the learning process.},
doi={10.12691/education-3-12B-1}
publisher={Science and Education Publishing}
}