DOI: 10.56773/bj.v2i2.32 E-ISSN: 2809-8528 Brillo Journal Volume 2, Issue 2, June 2023, pp. 63-79 63 EFFECT OF SMARTPHONE-ASSISTED JIGSAW COOPERATIVE LEARNING ON STUDENTS’ MATHEMATICS SELF-EFFICACY Felicia Omotola Johnson 1 , Ruth Folake Lawal 2 *, Favour Hapuruchi Dada 2 1 Birrel Avenue Senior High School, Lagos, Nigeria 2 Federal College of Education (Technical), Lagos, Nigeria Email: femifolawal256@gmail.com Abstract Smartphones have become handy tools in the hands of 21st-century teenagers owing to their necessity for communication and socialization. These devices could therefore possess underlying benefits for mathematics education. This quasi-experimental study probed the consequence of smartphone-assisted Jigsaw cooperative learning on senior secondary school student s’ mathematics self-efficacy with recourse to how gender and smartphone efficacy could moderate this effect. The study involved five research questions and hypotheses. Two schools from the Educational District IV, Lagos State were selected by purposive sampling technique from which five hundred and thirty four (534) students drawn from intact classes were assigned into experimental and control groups. Smartphone Assisted Learning Package (SALP) served as the intervention while a valid and reliable Mathematics Self-Efficacy Questionnaire (r=0.90) was employed for data collection. Statistical tools deployed for descriptive and inferential analysis include mean, standard deviation and Analysis of covariance (ANCOVA). Outcome of data analysis portrayed a momentous effect of treatment on students’ mathematics self-efficacy. Smartphone efficacy and gender were found to possess substantial influence on participants’ mathematics self - efficacy. These findings led to the recommendation that teachers should expose mathematics students to smartphone-assisted Jigsaw cooperative learning strategy to promote active learning and improve students’ mathematics self-efficacy. Keywords: Gender, Mathematics self-efficacy, Smartphone-assisted jigsaw cooperative learning. Abstrak Ponsel pintar telah menjadi alat yang berguna bagi remaja abad ke-21 dalam komunikasi dan sosialisasi. Perangkat ini dapat memberikan manfaat yang mendasar bagi pendidikan matematika. Penelitian quasi- eksperimen ini mempelajari pengaruh pembelajaran kooperatif Jigsaw berbantuan ponsel pintar terhadap efikasi diri matematika siswa sekolah menengah atas, dengan mempertimbangkan bagaimana gender dan efikasi ponsel pintar dapat memoderasi efek tersebut. Penelitian ini melibatkan lima pertanyaan penelitian dan hipotesis. Dua sekolah dari Distrik Pendidikan IV, Negara Bagian Lagos, dipilih dengan teknik pengambilan sampel purposif, di mana lima ratus tiga puluh empat (534) siswa diambil dari kelas-kelas utuh ditugaskan ke dalam kelompok eksperimen dan kontrol. Paket Pembelajaran berbantuan ponsel pintar digunakan sebagai intervensi, sementara Kuesioner Efikasi Diri Matematika yang valid dan reliabel (r=0.90) digunakan untuk pengumpulan data. Alat statistik yang digunakan untuk analisis deskriptif dan inferensial meliputi mean, deviasi standar, dan Analisis kovarian (ANCOVA). Hasil analisis data menunjukkan pengaruh perlakuan signifikan terhadap efikasi diri matematika siswa. Efikasi ponsel pintar dan gender terbukti memiliki pengaruh besar terhadap efikasi diri matematika siswa. Temuan ini mengarah pada rekomendasi agar guru memperkenalkan strategi pembelajaran kooperatif jigsaw berbantuan ponsel pintar kepada siswa untuk mendorong pembelajaran aktif dan meningkatkan efikasi diri matematika siswa. Kata kunci: Efikasi diri matematika, Gender, Pembelajaran kooperatif Jigsaw berbantuan ponsel pintar. How to Cite: Johnson, F. O., Lawal, R. F., & Dada, F. H. (2023). Effect of Smartphone-Assisted Jigsaw Cooperative Learning on Students’ Mathematics Self-Efficacy. Brillo Journal, 2(2), 63-79.