EKSPERIMENTASI MODEL PEMBELAJARAN KOOPERATIF THINKING ALOUD PAIR PROBLEM SOLVING (TAPPS) DAN TEAM ASSISTED INDIVIDUALIZATION (TAI) PADA MATERI SISTEM PERSAMAAN LINIER DUA VARIABEL DITINJAU DARI KEMAMPUAN BERPIKIR KRITIS SISWA KELAS VIII SMP DI KABUPATEN KARANGANYAR TAHUN PELAJARAN 2015/2016

摘要

The objective of this research was to investigate the effect of learning models on the learning achievement in Mathematics viewed from critical thinking ability of the student. The learning models compared were Thinking Aloud Pairs Problem Solving (TAPPS) model, Teams Assisted Individualization (TAI) and direct model. This research was the quasi-experimental research with 3×3 factorial design. The population of the research was all students of 8th grade Junior High School in Karanganyar. The samples were chosen by using stratified cluster random sampling. The samples were 270 students; consisted of 90 students in the first experimental class, 90 students in the second experimental class, and 90 students in control class. The instruments used to collect the data were the test of mathematics achievement and test of critical thinking ability. The technique of analyzing the data was two-ways ANOVA with unequal cells. The results of research showed that: (1) TAPPS model had better learning achievement than TAI model and direct model, TAI model had better learning achievement than direct model. (2) the students having high critical thinking ability had better learning achievement than those having medium and low critical thinking ability, the students having medium critical thinking ability had better learning achievement than those having low critical thinking ability; (3) For each of the learning model the students having high critical thinking ability had better learning achievement than those having medium and low critical thinking ability, the students having medium critical thinking ability had better learning achievement than those having low critical thinking ability; (4) For each level of critical thinking ability, TAPPS model gave better learning achievement than TAI model and direct model. TAI model gave mathematics learning achievement is better than direct learning model.