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7.298  Articles
1 of 731 pages  |  10  records  |  more records»
This essay aims to elucidate issues related to the origin, definition and contributions of number sense to mathematical learning. We discuss the controversies involved in the origin and conceptualization of the construct, as well as the understanding of n... see more

This essay aims to elucidate issues related to the origin, definition and contributions of number sense to mathematical learning. We discuss the controversies involved in the origin and conceptualization of the construct, as well as the understanding of n... see more

Article Details: Received: 2020-09-07 | Accepted: 2020-10-19 | Available online: 2020-12-31https://doi.org/10.15414/afz.2020.23.04.241-247The contents of polychlorinated biphenyls (PCBs) were determined in raw cow’s milk, feed and soil samples from three ... see more

1 of 731 pages  |  10  records  |  more records»