caa a22 4500 60618791X CHVBK 20210128100842.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s10857-014-9281-8 doi (NATIONALLICENCE)springer-10.1007/s10857-014-9281-8 Whitacre Ian Florida State University, Tallahassee, FL, USA aut Strategy ranges: describing change in prospective elementary teachers' approaches to mental computation of sums and differences [Elektronische Daten] [Ian Whitacre] This study investigated the sets of mental computation strategies used by prospective elementary teachers to compute sums and differences of whole numbers. In the context of an intervention designed to improve the number sense of prospective elementary teachers, participants were interviewed pre/post, and their mental computation strategies were analyzed. The analysis led to the identification of the strategy ranges used by the participants, as well as descriptions of changes pre/post in those strategy ranges. This article illustrates how strategy ranges, as an analytic tool, afford useful descriptions of the repertoires of mental computation strategies that individuals use. Springer Science+Business Media Dordrecht, 2014 Prospective elementary teachers nationallicence Mental computation nationallicence Flexibility nationallicence Strategy ranges nationallicence Journal of Mathematics Teacher Education Springer Netherlands 18/4(2015-08-01), 353-373 1386-4416 18:4<353 2015 18 10857 https://doi.org/10.1007/s10857-014-9281-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10857-014-9281-8 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Whitacre Ian Florida State University, Tallahassee, FL, USA aut NATIONALLICENCE 773 0- Journal of Mathematics Teacher Education Springer Netherlands 18/4(2015-08-01), 353-373 1386-4416 18:4<353 2015 18 10857