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All Journal International Journal of Evaluation and Research in Education (IJERE)
Lislee C. Valle
Cebu Technological University-Danao Campus
Education

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Trachtenberg speed math and multiplication performance of Danao learners: a quasi-experimental pilot study Rose Mary L. Almacen; Ronnel Victor B. Kilat; Lislee C. Valle; Romel C. Mutya; Dawn Iris Calibo-Senit; Margarito B. Callao; Jennifer B. Carillo; Rowena P. Dato-on; Adrian P. Ybañez
International Journal of Evaluation and Research in Education (IJERE) Vol 15, No 5: October 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v15i5.40084

Abstract

Multiplication fluency remains a persistent challenge for many Filipino learners, yet community-based evidence on low-cost supplementary interventions is limited. This study examined whether a six-week Trachtenberg speed math intervention was associated with improved multiplication performance among learners aged 8 to 13 years in three local communities in Danao City, Philippines. The study used a one-group pretest-posttest quasi-experimental pilot design conducted during a community-based numeracy intervention. Paired scores from 135 participants were analyzed using paired-samples t-tests, mean gains, 95% confidence intervals (95% CI), and within-subject effect sizes (dz). Scores increased significantly in Maslog from 27.31 to 49.82, in Sabang from 32.68 to 49.84, and in Taytay from 31.91 to 48.78 (all p
Co-Authors Adrian P. Ybañez Dawn Iris Calibo-Senit Jennifer B. Carillo Margarito B. Callao Romel C. Mutya Ronnel Victor B. Kilat Rose Mary L. Almacen Rowena P. Dato-on