{"id":"https://openalex.org/W2093366089","doi":"https://doi.org/10.1080/0950069970190305","title":"Children's operational knowledge about weight","display_name":"Children's operational knowledge about weight","publication_year":1997,"publication_date":"1997-03-01","ids":{"openalex":"https://openalex.org/W2093366089","doi":"https://doi.org/10.1080/0950069970190305","mag":"2093366089"},"language":"en","primary_location":{"id":"doi:10.1080/0950069970190305","doi":"https://doi.org/10.1080/0950069970190305","is_oa":false,"landing_page_url":"https://doi.org/10.1080/0950069970190305","pdf_url":null,"source":{"id":"https://openalex.org/S54332258","display_name":"International Journal of Science Education","issn_l":"0950-0693","issn":["0950-0693","1464-5289"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","erih-plus","jufo-3","ki-jl-1","norway-2","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Science Education","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5067721552","display_name":"Igal Galili","orcid":"https://orcid.org/0000-0003-3473-4427","observed_orcids":["https://orcid.org/0000-0003-3473-4427"]},"institutions":[{"id":"https://openalex.org/I197251160","display_name":"Hebrew University of Jerusalem","ror":"https://ror.org/03qxff017","country_code":"IL","type":"education","lineage":["https://openalex.org/I197251160"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Igal Galili","raw_affiliation_strings":["Science Teaching Department, The Hebrew University of Jerusalem"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Science Teaching Department, The Hebrew University of Jerusalem","institution_ids":["https://openalex.org/I197251160"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5033882903","display_name":"Varda Bar","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I197251160","display_name":"Hebrew University of Jerusalem","ror":"https://ror.org/03qxff017","country_code":"IL","type":"education","lineage":["https://openalex.org/I197251160"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Varda Bar","raw_affiliation_strings":["Science Teaching Department, The Hebrew University of Jerusalem"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Science Teaching Department, The Hebrew University of Jerusalem","institution_ids":["https://openalex.org/I197251160"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I197251160"],"apc_list":null,"apc_paid":null,"fwci":9.9615,"has_fulltext":false,"cited_by_count":51,"citation_normalized_percentile":{"value":0.97542797,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"19","issue":"3","first_page":"317","last_page":"340"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10072","display_name":"Science Education and Pedagogy","score":0.9970999956130981,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T10072","display_name":"Science Education and Pedagogy","score":0.9970999956130981,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12931","display_name":"Educational Methods and Outcomes","score":0.0006000000284984708,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10656","display_name":"Child and Animal Learning Development","score":0.0003000000142492354,"subfield":{"id":"https://openalex.org/subfields/3204","display_name":"Developmental and Educational Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/operational-knowledge","display_name":"operational knowledge","score":0.5680000185966492},{"id":"https://openalex.org/keywords/physical-concepts","display_name":"physical concepts","score":0.3790000081062317},{"id":"https://openalex.org/keywords/concept-image","display_name":"concept image","score":0.6809999942779541},{"id":"https://openalex.org/keywords/cognitive-development","display_name":"cognitive development","score":0.43299999833106995},{"id":"https://openalex.org/keywords/gravitational-force","display_name":"gravitational force","score":0.5},{"id":"https://openalex.org/keywords/intuitive-physics","display_name":"intuitive physics","score":0.40299999713897705}],"concepts":[{"id":"https://openalex.org/C50335755","wikidata":"https://www.wikidata.org/wiki/Q483247","display_name":"Phenomenon","level":2,"score":0.6396712064743042},{"id":"https://openalex.org/C2776608160","wikidata":"https://www.wikidata.org/wiki/Q4785462","display_name":"Natural (archaeology)","level":2,"score":0.5706580281257629},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.5559075474739075},{"id":"https://openalex.org/C116834253","wikidata":"https://www.wikidata.org/wiki/Q2039217","display_name":"Identification (biology)","level":2,"score":0.5236546397209167},{"id":"https://openalex.org/C138496976","wikidata":"https://www.wikidata.org/wiki/Q175002","display_name":"Developmental psychology","level":1,"score":0.46404263377189636},{"id":"https://openalex.org/C147583825","wikidata":"https://www.wikidata.org/wiki/Q620876","display_name":"Body weight","level":2,"score":0.45421186089515686},{"id":"https://openalex.org/C2988516024","wikidata":"https://www.wikidata.org/wiki/Q441195","display_name":"Life span","level":2,"score":0.42125001549720764},{"id":"https://openalex.org/C145420912","wikidata":"https://www.wikidata.org/wiki/Q853077","display_name":"Mathematics education","level":1,"score":0.37782716751098633},{"id":"https://openalex.org/C77805123","wikidata":"https://www.wikidata.org/wiki/Q161272","display_name":"Social psychology","level":1,"score":0.36089038848876953},{"id":"https://openalex.org/C180747234","wikidata":"https://www.wikidata.org/wiki/Q23373","display_name":"Cognitive psychology","level":1,"score":0.3573165237903595},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.32262396812438965},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.18285420536994934},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.10436064004898071},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.10393378138542175},{"id":"https://openalex.org/C74909509","wikidata":"https://www.wikidata.org/wiki/Q10387","display_name":"Gerontology","level":1,"score":0.09394422173500061},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1080/0950069970190305","doi":"https://doi.org/10.1080/0950069970190305","is_oa":false,"landing_page_url":"https://doi.org/10.1080/0950069970190305","pdf_url":null,"source":{"id":"https://openalex.org/S54332258","display_name":"International Journal of Science Education","issn_l":"0950-0693","issn":["0950-0693","1464-5289"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","erih-plus","jufo-3","ki-jl-1","norway-2","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Science Education","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":50,"referenced_works":["https://openalex.org/W257219311","https://openalex.org/W1525468650","https://openalex.org/W1538916647","https://openalex.org/W1584697775","https://openalex.org/W1965266452","https://openalex.org/W1965649524","https://openalex.org/W1966759983","https://openalex.org/W1967488407","https://openalex.org/W1969288146","https://openalex.org/W1973373434","https://openalex.org/W1976518595","https://openalex.org/W1977077371","https://openalex.org/W1983448878","https://openalex.org/W1989557631","https://openalex.org/W1996938647","https://openalex.org/W2001086182","https://openalex.org/W2001442676","https://openalex.org/W2001589487","https://openalex.org/W2002515044","https://openalex.org/W2003731195","https://openalex.org/W2008059323","https://openalex.org/W2009295735","https://openalex.org/W2009617641","https://openalex.org/W2011859461","https://openalex.org/W2017826578","https://openalex.org/W2018306000","https://openalex.org/W2035566391","https://openalex.org/W2042904858","https://openalex.org/W2062758472","https://openalex.org/W2071925785","https://openalex.org/W2072717086","https://openalex.org/W2085234963","https://openalex.org/W2086187882","https://openalex.org/W2086505041","https://openalex.org/W2087166774","https://openalex.org/W2106782820","https://openalex.org/W2108153513","https://openalex.org/W2112579138","https://openalex.org/W2115886036","https://openalex.org/W2121924510","https://openalex.org/W2134263457","https://openalex.org/W2326997221","https://openalex.org/W2487739755","https://openalex.org/W3006708736","https://openalex.org/W3017501311","https://openalex.org/W4248255325","https://openalex.org/W4250414387","https://openalex.org/W4250931815","https://openalex.org/W4300413009","https://openalex.org/W7030304919"],"related_works":["https://openalex.org/W420124995","https://openalex.org/W647521163","https://openalex.org/W1992702152","https://openalex.org/W2257614417","https://openalex.org/W2258728930","https://openalex.org/W2031299979","https://openalex.org/W2126056297","https://openalex.org/W7009523428","https://openalex.org/W2317553651","https://openalex.org/W2197307991"],"abstract_inverted_index":{"This":[0],"study":[1,117],"explores":[2],"children's":[3,19],"knowledge":[4,71],"regarding":[5],"weight":[6,64,93,123,148,156],"in":[7,53],"the":[8,24,61,67,70,83,110,120,144,155],"age":[9],"span":[10],"of":[11,46,63,69,81,86,92,122,147],"five":[12],"to":[13,109],"sixteen":[14],"years.":[15],"It":[16],"appears":[17],"that":[18,119],"views":[20],"develop":[21],"gradually":[22],"from":[23],"tactile":[25],"experiences.":[26],"Thus,":[27],"such":[28],"schemes":[29],"as":[30,127],"\u2018weight\u2010is\u2010a\u2010pressing\u2010force\u2019,":[31],"\u2018weight\u2010is\u2010possessed\u2010exclusively\u2010by\u2010heavy\u2010objects\u2019,":[32],"\u2018suspended\u2010substances\u2010are\u2010weightless\u2019,":[33],"\u2018weight\u2010is\u2010heaviness\u2010to\u2010hold/move\u2019,":[34],"and":[35,75,90,104,154],"others,":[36],"are":[37],"intuitively":[38],"constructed":[39,150],"at":[40],"a":[41,141,152],"young":[42],"age.":[43],"Children's":[44],"applications":[45],"these":[47],"schemata":[48,103],"might":[49],"be":[50],"mutually":[51],"contradictory":[52],"different":[54,79,101],"physical":[55,112],"situations,":[56],"being":[57],"gradually,":[58],"pushed":[59],"by":[60,130,151],"ideas":[62],"conservation.":[65],"As":[66],"transition":[68],"status":[72],"is":[73,94,133,140],"continuous":[74],"not":[76,134],"synchronized":[77],"between":[78,88,143],"aspects":[80],"reality,":[82],"regular":[84],"classification":[85],"children":[87],"\u2018conservers\u2019":[89],"\u2018nonconservers\u2019":[91],"rather":[95],"imprecise.":[96],"Children":[97],"can":[98],"simultaneously":[99],"employ":[100],"operational":[102],"concept":[105,113,157],"images":[106],"with":[107,124],"regard":[108],"same":[111],"or":[114],"phenomenon.":[115],"The":[116],"implies":[118],"identification":[121],"gravitational":[125],"force,":[126],"currently":[128],"adopted":[129],"formal":[131],"instruction,":[132],"reached":[135],"through":[136],"natural":[137],"development.":[138],"There":[139],"kinship":[142],"mental":[145],"image":[146],"spontaneously":[149],"child":[153],"defined":[158],"operationally.":[159]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":4},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-10-30T12:39:25.321706","created_date":"2016-06-24T00:00:00"}