<![CDATA[ABSTRACT: This research aimed to reveal which have a better mathematics achievement of students taught by cooperative learning model of TAI type using CTL, those taught by cooperative learning model of TAI type, or those taught by conventional learning model based on the studentsâ learning activeness. This research was a quasi-experimental research with the 3x3 factorial design. The population was all the 7rd grader studens of SMP Negeri in Karanganyar regency on academic year 2011/2012. The techniques of data collection were documentation, questionnaires and test method. Prior to balance test, a pre-requisite tests analysis (normality and homogenity test). The proposed hypotheses of the research were tested by using the unbalanced two ways analysis of variance and multiple comparative test with the Sceffeâs test. The result indicates: (1) the mathematics achievement of students taught by cooperative learning model of TAI type using CTL was better than that of students taught by cooperative learning model of TAI type and that of students taught by conventional learning model, and the mathematics achievement of students taught by cooperative learning model of TAI type was better than that of students taught by conventional learning model, (2) the mathematics achievement of the students wth high learning activeness was better than that of students with middle and low learning activeness, and the mathematics achievement of the students wth middle learning activeness was better than that of students with low learning activeness, (3) in the TAI using CTL, the mathematics achievement of the students with high learning activeness was as good as that of the students with the middle learning activeness or the low learning activeness, and in the TAI and in the conventional learning model, the mathematics achievement of the students with the high learning activeness was better than that of the students with the low learning activeness, but was the same that of the students with the middle learning activeness, meanwhile, the mathematics achievement of the students with the middle learning activeness was the same that of the students with the low learning activeness, and (4) in the high learning activeness, the students taught by cooperative learning of the TAI type using CTL, those taught by cooperative learning of the TAI type, and those taught by conventional learning model have the same mathematics achievement, meanwhile, in the middle learning activeness and in the low learning activeness, the mathematics achievement of the students taught by cooperative learning model of TAI type using CTL was better than that of the students taught by conventional learning model, but was the same that of the students taught by cooperative learning model of the TAI type, and the mathematics achievement of the students taught by cooperative learning model of TAI type was the same that of the students taught by conventional learning model. Keywords: TAI using CTL, TAI, Conventional, Learning Activeness, Learning Achievement of Mathematics. Â ]]>
