PENERAPAN MODEL COOPERATIVE LEARNING TIPE TEAM ASSISTED INDIVIDUALIZATION (TAI) UNTUK MENINGKATKAN KEMAMPUAN PENALARAN DAN KOMUNIKASI MATEMATIS SERTA MENGEMBANGKAN SELF-EFFICACY PESERTA DIDIK SMA

Komunikasi: Penalaran: Self-efficacy: Team Assisted Individualization

Abstrak

The research approach used is mixed methods with convergent design. The instruments used were tests of reasoning and communication skills, self efficacy questionnaires, teacher and student observation sheets, as well as interviews. Based on the results of research that has been carried out from as many as nine meetings showed that: 1) the application of the cooperative learning model Time Assisted Individualization (TAI) type can improve students' reasoning abilities; 2) the application of the cooperative learning model Time Assisted Individualization (TAI) type can improve students' communication skills; 3) mathematical reasoning and communication skills during the learning process can be overcome properly, and there is an increase in each meeting; 4) the development of students' self-efficacy during the mathematics learning process by applying the cooperative learning model Time Assisted Individualization (TAI) type is in the medium category, both overall and based on the dimensions of magnitude, strength, and generality; 5) there is a positive relationship between reasoning abilities and mathematical communication skills with students' self efficacy; 6) the obstacles faced by students in completing mathematical reasoning and communication skills tests can be overcome within the limits of achieving the minimum completeness criteria that have been set at the beginning of the study and are evaluated in each meeting.