International Journal on Science and Technology

E-ISSN: 2229-7677     Impact Factor: 9.88

A Widely Indexed Open Access Peer Reviewed Multidisciplinary Bi-monthly Scholarly International Journal

Call for Paper Volume 17 Issue 2 April-June 2026 Submit your research before last 3 days of June to publish your research paper in the issue of April-June.

Abstract Puzzle Tangram: Effects on Performance of Students in Integer Operations

Author(s) Jeanne Llorera Garcia, Jesus L. Regacho
Country Philippines
Abstract This study investigates the effectiveness of using abstract puzzle tangrams as an instructional tool to improve the performance of Grade 7 students on operations operation of integers. Recognizing the challenges students face in understanding abstract mathematical concepts such as integers, the research aims to determine whether abstract puzzle tangram manipulatives can enhance mastery in addition, subtraction, multiplication, division, and problem-solving skills. The hypothesis posits that there will be a significant improvement in students’ performance after using the intervention material. Employing a descriptive- comparative research design, the study involved 122 Grade 7 learners from Tomas Avila Andaya Sr. National High School, with data collected through validated teacher-made assessments administered before and after the intervention. Guided by the following theories: Vygotsky’s scaffolding theory, Thorndike’s stimulus-response theory, the zone of proximal development, and Gagné’s theory of design. Findings revealed a substantial increase in students’ performance, with pre-test scores indicating beginning levels and post-test scores showing approaching proficiency. Statistical analyses, including paired t-tests, confirmed a highly significant difference (p < .001), with a large effect size (Cohen’s d = 5.00), demonstrating the intervention’s effectiveness. The study concludes that integrating manipulatives in teaching enhances student engagement and achievement in mathematics. Recommendations include adopting tangram activities as a regular instructional tool and conducting further studies to explore long-term impacts and applicability across different educational settings.
Keywords Abstract Puzzle Tangram, Intervention Materials, Operation of Integer, Manipulatives, Student’s Performance
Field Mathematics
Published In Volume 17, Issue 2, April-June 2026
Published On 2026-04-08

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