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This research aims to determine the application of the jigsaw type cooperative learning model to fifth grade students at Hasanuddin Elementary School, Medan Helvetia, in the mathematics subject of integers. This type of research uses PTK (Classroom Action Research). The subjects in this research were all 30 fifth grade students at Hasanuddin Elementary School, consisting of 13 men and 17 women. Meanwhile, the object of this researcher is to improve student learning outcomes in mathematics subjects covering integers. We can observe data on the comprehension abilities of class V students in classes using the Jigsaw model in table 1, then the data is analyzed using the SPSS version 25.0 application. The results of data analysis show that the learning outcomes in class V using the Jigsaw model obtained a class average score of 83.30. The average value of students' mathematical understanding was classified as good, followed by the highest score obtained by class V students at Hasanudin Elementary School was 100. 00 and the lowest value is 63.00. Based on data processing on the mathematical understanding ability of fifth grade students at Hasanuddin Elementary School using the Jigsaw model, it is known that 3 students got scores in the range of 56-70 (medium category) or 10.0% of the entire sample, 14 students got scores in the range. 71-85 (good category) or 46.7% of the entire sample, and 13 students got scores in the range of 86-100 (very good category) or 43.3% of the entire sample.

The research aims to determine whether there is a positive and significant influence in the use of the jigsaw type copperative learning model on the active learning of Christian Religious Education and Character in class XI students at SMK Negeri 1 Siatas Barita for the 2023/2024 academic year. The research hypothesis is that there is a positive and significant influence between the jigsaw type cooperative learning model on the active learning of Christian Religious Education and Characteristics of class XI students at SMK Negeri 1 Siatas Barita for the 2023/2024 academic year. The population of class XI students at SMK Negeri 1 Siatas Barita Learning 2023/2024 who are Protestant Christians is 325 people. The research sample using random sampling technique was 18% of the total population, namely 58 people. The research instrument is a closed questionnaire. The results of data analysis obtained: The value rcount=0.673>rtabel=0.254 and tcount=6.809>ttable=2.00324 shows that there is a positive and significant relationship between the jigsaw type cooperative learning model and students' active learning in Christian Religious Education and Character. Regression equation .  The determination test revealed that the magnitude of the effect was 45.29%. Hypothesis test Fcount=46.479>Ftable=3.15 then H0 (null hypothesis) is rejected and Ha (alternative hypothesis) is accepted. The research concluded that there was a positive and significant influence between the jigsaw cooperative learning model on the activeness of learning in Christian Religious Education and Character in class XI students at SMK Negeri 1 Siatas Barita for the 2023/2024 academic year.

This research aims to determine the effectiveness of the jigsaw type cooperative learning model for class The research method used is a quantitative method. The data collection technique used is in the form of test questions and observations. The data obtained in this research are the learning results of students at SMAN 6 Lhoksemawe. The sample in this research was all class XI students of SMAN 6 Lhokseumawe. Data analysis techniques in this research use normality tests, homogeneity tests, and hypothesis tests. Based on the research results, it was found that student learning outcomes increased by 61.87% in the medium category. This can show that the jigsaw type cooperative learning model is quite effective.        

This classroom action research aims to improve reading skills through Jigsaw type cooperative learning for class VI students at SD Inpres, Sungguminasa, Gowa Regency. The subjects of this research were 40 grade VI students at SD Inpres Multilevel Sungguminasa, Gowa Regency. Academic Year 2023/2024. This PTK consists of 2 cycles, each consisting of 3 meetings. Data collection was carried out using the results of students' work when carrying out actions and observation sheets. The collected data was analyzed using quantitative analysis and qualitative analysis. The results achieved were: (1) students' reading ability before the action was held was in the low category with an average score of 4.88 from the highest possible score of 10. (2) Students' reading ability after taking action in the form of Jigsaw type cooperative learning in Cycle I was in the high category with an average score of 8.04 from the highest possible score of 10. (3) Students' reading ability after taking action, in the form of learning by applying models Jigsaw type cooperative learning in Cycle II was in the very high category with an average score of 8.84 from the highest possible score of 10. (4) There was an increase in the percentage of student attendance. (5) Students' interest, attention and motivation in participating in the learning process using the Jigsaw cooperative model has also increased, this can be seen from the increase in student activity in the learning process. The results of this research also show changes on the teacher's side, initially teachers were less creative in using various Jigsaw type cooperative learning strategies, which had a good impact, apparently being able to motivate and increase teacher interest in developing effective learning.    

This classroom action research aims to improve reading skills through Jigsaw type cooperative learning for class VI students at SD Inpres, Sungguminasa, Gowa Regency. The subjects of this research were 40 grade VI students at SD Inpres Multilevel Sungguminasa, Gowa Regency. Academic Year 2023/2024. This PTK consists of 2 cycles, each consisting of 3 meetings. Data collection was carried out using the results of students' work when carrying out actions and observation sheets. The collected data was analyzed using quantitative analysis and qualitative analysis. The results achieved were: (1) students' reading ability before the action was held was in the low category with an average score of 4.88 from the highest possible score of 10. (2) Students' reading ability after taking action in the form of Jigsaw type cooperative learning in Cycle I was in the high category with an average score of 8.04 from the highest possible score of 10. (3) Students' reading ability after taking action, in the form of learning by applying models Jigsaw type cooperative learning in Cycle II was in the very high category with an average score of 8.84 from the highest possible score of 10. (4) There was an increase in the percentage of student attendance. (5) Students' interest, attention and motivation in participating in the learning process using the Jigsaw cooperative model has also increased, this can be seen from the increase in student activity in the learning process. The results of this research also show changes on the teacher's side, initially teachers were less creative in using various Jigsaw type cooperative learning strategies, which had a good impact, apparently being able to motivate and increase teacher interest in developing effective learning.    

This study aims to describe the effect of using the jigsaw cooperative learning model on the writing skills of review texts of class XI MAN 2 Padang City students. This type of research is quantitative with experimental methods. The research design used was The Posttest Only Control Group Design. The study population was class XI MAN 2 Padang City using a purposive sampling technique for sampling. The selected sample consists of two classes, namely the experimental class and the control class. The data in this study were scores of students' review text writing skills in class XI MAN 2 Padang City using the jigsaw cooperative learning model and conventional learning models. The research instrument is a performance test. Based on the results of data management, it shows that the average value of students using the jigsaw cooperative learning model is 85.42 while the average value of students using the conventional method is 73.50. The results of the hypothesis test show that tcount > ttable (6.09 > 1.68). Thus, it shows that the jigsaw type cooperative learning model is better than using conventional methods.