{"id":"W7132999087","doi":"","title":"Deepening children's understanding of rational numbers, a developmental model and two experimental studies","year":2000,"lang":"en","type":"dissertation","venue":"TSpace","topic":"Cognitive and developmental aspects of mathematical skills","field":"Mathematics","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Action (physics); Field (mathematics); Work (physics); Perspective (graphical); Process (computing)","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.003449025,0.001009034,0.0006120636,0.0007585757,0.0009336477,0.002904272,0.000886496,0.001696265,0.007167079],"category_scores_gemma":[0.01222529,0.0008823205,0.0005240064,0.0006594323,0.004478452,0.003917777,0.001201751,0.00221704,0.0006744383],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.002279749,"about_ca_system_score_gemma":0.002281814,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.03770657,"about_ca_topic_score_gemma":0.02845697,"domain_scores_codex":[0.9987986,0.0003547544,0.00006027855,0.0003024001,0.0003336448,0.0001503545],"domain_scores_gemma":[0.988874,0.00818147,0.001154539,0.00103525,0.0004737154,0.0002810229],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.006618088,0.02491889,0.1674455,0.00256437,0.0003198482,0.00805116,0.195712,0.02894119,0.09987108,0.2647571,0.01868805,0.1821129],"study_design_scores_gemma":[0.00327327,0.01154714,0.512488,0.001372241,0.001471426,0.006156087,0.09066812,0.05051865,0.08539435,0.1757639,0.06070135,0.0006454058],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9880051,0.0001676696,0.001025879,0.0003575831,0.00001158921,0.00004698049,0.0001431071,0.00002494375,0.0102172],"genre_scores_gemma":[0.9921027,0.0003747235,0.002135369,0.00007978833,0.000003398137,0.0001453097,0.0001498036,0.00002011979,0.004988731],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.03770657,"threshold_uncertainty_score":0.07497424,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1258889586893638,"score_gpt":0.4271038535989642,"score_spread":0.3012148949096004,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}