{"id":"W2947024496","doi":"10.22342/jme.10.2.7488.251-264","title":"PRIMARY SCHOOL STUDENTS' ABSTRACTION LEVELS OF WHOLE-HALF-QUARTER CONCEPTS ACCORDING TO RBC THEORY","year":2019,"lang":"en","type":"article","venue":"Journal on Mathematics Education","topic":"Mathematics Education and Teaching Techniques","field":"Social Sciences","cited_by":7,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Quarter (Canadian coin); Abstraction; Mathematics education; Psychology; Data collection; Mathematics; Statistics; Epistemology; History","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":[0.00246648,0.0003032578,0.0003581946,0.001472168,0.0008559749,0.002620102,0.0005774813,0.0005129559,0.002908832],"category_scores_gemma":[0.008639496,0.0002811398,0.0004972879,0.000744974,0.002017458,0.001376192,0.001799798,0.001275894,0.0004824251],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0009401077,"about_ca_system_score_gemma":0.001534413,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002704573,"about_ca_topic_score_gemma":0.002120296,"domain_scores_codex":[0.997588,0.0006393561,0.0002030328,0.0001843879,0.001103853,0.0002813972],"domain_scores_gemma":[0.9944137,0.00204804,0.001120654,0.0004126061,0.001534597,0.0004705008],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0002369061,0.0007471651,0.5135733,0.0006908717,0.0000804165,0.0009669976,0.30986,0.001627654,0.01640528,0.03059134,0.002885036,0.122335],"study_design_scores_gemma":[0.00004432052,0.001108057,0.6015136,0.0005743249,0.0001146324,0.001403117,0.3141336,0.006499388,0.005906413,0.04085853,0.02767927,0.0001646336],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9884557,0.0001539754,0.003833638,0.0003293978,0.000009453587,0.00005075425,0.00003504421,0.00002272778,0.007109343],"genre_scores_gemma":[0.9969385,0.0001287781,0.001631273,0.00004247401,0.000001829327,0.00002950977,0.00004091387,0.000004260482,0.001182645],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.002908832,"threshold_uncertainty_score":0.01304418,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03150648877760003,"score_gpt":0.413433851115516,"score_spread":0.381927362337916,"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."}}