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Number Sense and Flexibility of Calculation: A Common Focus on Number Relations

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dc.contributor.authorSerrazina, Maria De Lurdes
dc.contributor.authorRodrigues, Margarida
dc.date.accessioned2021-07-05T13:23:07Z
dc.date.embargo2030-12-31
dc.date.issued2021
dc.description.abstractThere is a consensus that 21st century citizens need competencies such as flexibility, creativity, critical thinking, taking different perspectives, and considering multiple solutions for which number sense and mental calculation flexibility play a crucial role. Number sense implies to know numbers and its relations with two central characteristics: (i) progressive development throughout schooling; (ii) global character, implying knowledge about numbers and operations and their flexible use in making mathematical judgments and solving problems. Mental calculation flexibility involves to know how to use dynamically number sense, number patterns and being attentive to problem characteristics to achieve a solution, which, in turn, depends on students’ knowledge of numbers and operations and their relations and how they are able to create a network of number relations. This chapter discusses those interrelations based on relevant literature and illustrated by data from Portuguese elementary school. Through data analysis of excerpts of students’ resolutions of open tasks and the respective discussion, the data illustrates the relevance of constructing number relations and how the teacher’s role, particularly the teacher’s actions in whole class discussion, can create a classroom environment conducive to the development of both number sense and flexibility in calculation.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSerrazina L., Rodrigues M. (2021) Number Sense and Flexibility of Calculation: A Common Focus on Number Relations. In: Spinillo A.G., Lautert S.L., Borba R.E..S.R. (eds) Mathematical Reasoning of Children and Adults. Springer, Cham. https://doi.org/10.1007/978-3-030-69657-3_2pt_PT
dc.identifier.doi10.1007/978-3-030-69657-3_2pt_PT
dc.identifier.isbn978-3-030-69657-3
dc.identifier.urihttp://hdl.handle.net/10400.21/13516
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relation.publisherversionhttps://link.springer.com/chapter/10.1007%2F978-3-030-69657-3_2pt_PT
dc.subjectNumber sensept_PT
dc.subjectFlexibility of calculationpt_PT
dc.subjectNumber relationspt_PT
dc.titleNumber Sense and Flexibility of Calculation: A Common Focus on Number Relationspt_PT
dc.typebook part
dspace.entity.typePublication
oaire.citation.endPage40pt_PT
oaire.citation.startPage19pt_PT
oaire.citation.titleMathematical Reasoning of Children and Adultspt_PT
person.familyNameSerrazina
person.familyNameRodrigues
person.givenNameMaria de Lurdes
person.givenNameMargarida
person.identifier1782812
person.identifier.ciencia-idD91D-9562-DA46
person.identifier.ciencia-id1B1C-88B5-75C4
person.identifier.orcid0000-0003-3781-8108
person.identifier.orcid0000-0003-4658-6281
person.identifier.scopus-author-id55849544400
person.identifier.scopus-author-id57202834296
rcaap.rightsembargoedAccesspt_PT
rcaap.typebookPartpt_PT
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relation.isAuthorOfPublication.latestForDiscoveryfb0825ea-cc97-4358-9328-3c204e7b0904

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