The Effectiveness of COLLAPOSE: A Web-Based E-LKPD Incorporating Collaborative Problem Posing for Enhancing Elementary Students’ Mathematical Creative Thinking
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Abstract
Mathematical creative thinking is an important competency in elementary mathematics education; however, students often struggle to generate diverse, original mathematical ideas. This study examined the effectiveness of COLLAPOSE (Collaborative Problem Posing E-LKPD), a web-based electronic student worksheet that integrates collaborative problem posing with indicator-specific scaffolding to foster students’ mathematical creative thinking. A quantitative approach employing a quasi-experimental, nonequivalent control-group design was adopted. The participants comprised 48 fifth-grade students from two intact classes at SDN Geluran 3, Sidoarjo, Indonesia. The classes were purposively selected based on characteristics identified in a preliminary study, particularly the heterogeneity of students’ mathematical abilities as determined by the results of the Mathematics Ability Test (Tes Kemampuan Matematika/TKM). One class (n = 24) was designated as the experimental group and received instruction using the web-based COLLAPOSE E-LKPD, whereas the other class (n = 24) served as the control group and received conventional instruction using a non-web-based E-LKPD without collaborative problem-posing features. The intervention was implemented across six sessions, comprising a pretest, four 90-minute instructional sessions, and a posttest. Students’ mathematical creative thinking was assessed through open-ended essay tasks designed to measure three dimensions: fluency, flexibility, and novelty. The assessment instrument demonstrated acceptable empirical item validity and good internal consistency, as indicated by a Cronbach’s alpha coefficient of 0.862. Data were analyzed using N-Gain analysis and an independent-samples t-test, while Cohen’s d was calculated to estimate the magnitude of the between-group effect. The experimental group achieved a mean N-Gain of 0.68, categorized as moderate, whereas the control group achieved a mean N-Gain of 0.21, categorized as low. Post-test performance was significantly higher in the experimental group (M = 82.33) than in the control group (M = 67.46), t(46) = 5.678, p < .001. The findings provide initial empirical evidence that integrating collaborative problem posing, peer interaction, problem modification, and indicator-specific scaffolding within a web-based E-LKPD may support the development of mathematical creative thinking among fifth-grade students within the context of the study.
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Febriarsita Eka Sasmita