The purpose of this study was to determine the effect of the Problem Solving learning model on student learning activity in Christian Religious Education and Character Education in class X of SMA Negeri 1 Sipoholon in the 2024/2025 Academic Year. The method used in this study uses a quantitative research method. The population is all Protestant Christian students in class X of SMA Negeri 1 Sipoholon in the 2024/2025 Academic Year, totaling 271 people and 41 people were determined as research respondents, namely 15% of the population. Data were collected using a positive closed questionnaire of 50 items. The results of the data analysis show that there is an influence of the Problem Solving learning model on the learning activity of students in Christian Religious Education and Character Education in class X of SMA Negeri 1 Sipoholon in the 2024/2025 Academic Year: 1) Analysis requirements test: a) positive relationship test obtained rxy value = 0.548> rtable (? = 0.05, n = 41) = 0.308 thus it is known that there is a positive relationship between variable X and variable Y. b) Significant relationship test obtained tcount value = 4.089> ttable (? = 0.05, dk = n-2 = 39) = 2.021 thus there is a significant relationship between variable X and variable Y. 2) Influence test: a) Regression equation test, obtained regression equation Y ?="42","64"+0.84X. b) Regression determination coefficient test (r2) = 30%. 3) Hypothesis testing using the F test obtained Fcount > Ftable = (? = 0.05, df numerator k = 15, df denominator = n-2 = 41-2 = 39) which is 16.70 > 1.92. Thus Ha, namely there is an influence of the Problem Solving learning model on the learning activity of students in Christian Religious Education and Character Education in class X of SMA Negeri 1 Sipoholon in the 2024/2025 Academic Year is accepted and H0 is rejected.

The purpose of this study was to determine the effect of the Think Pair Share learning model on the learning activity of Christian Religious Education and Character Education of class XI students of HKBP Doloksanggul Private High School in the 2024/2025 Academic Year. The research hypothesis is that there is an effect of the Think Pair Share learning model on the learning activity of Christian Religious Education and Character Education of class XI students of HKBP Doloksanggul Private High School in the 2024/2025 Academic Year. This research method is the Quasi Experimental Design method using the Nonequivalent Control Group Design. The population of all class XI students of HKBP Doloksanggul Private High School in the 2024/2025 Academic Year who are Protestant Christians is 159 students and is divided into 5 classes. The research sample was determined using a purposive sampling technique, namely 30 students in class XI-4 as an experimental class using the Think Pair Share learning model and 33 students in class XI-2 as a control class using the usual treatment (conventional class). The research instrument was a closed questionnaire consisting of 30 items. The research questionnaire data was analyzed using the average difference test formula (N-Gain Score). The average pretest and posttest scores at the first and second meetings of the experiment were 3.06 and 3.77, and for the first and second meetings of the pretest and posttest in the control class were 2.75 and 3.00. So the overall average score of the experimental class is 0.7570 in the high category. The overall average score for the control class is 0.1930 in the low category. Then the t-test obtained a value of t count = 14.170> t table (? = 0.05; df = 61) = 2.000, so H0 is rejected and Ha is accepted. The study concluded that there is an influence of the Think Pair Share learning model on the activeness of learning Christian Religious Education and Character Education of class XI students of HKBP Doloksanggul Private High School in the 2024/2025 Academic Year.

The research aims to determine how much influence the application of the Active Learning learning model has on the learning outcomes of Christian Religious Education for class VII students at SMP Negeri 3 Siborongborong Learning Year 2023/2024. The research hypothesis is that there is a positive and significant influence of the Active Learning learning model on the learning outcomes of Christian Religious Education for class VII students at SMP Negeri 3 Siborongborong for the 2023/2024 academic year. Quantitative research method using a Pre-Experimental Design approach in the form of a One Shot Case Study.  The population of all class VII students at SMP Negeri 3 Siborongborong for the 2023/2024 academic year who are Protestant Christians is 109 people. The purposive sampling system was 32 people. The research instrument is a closed number and posttest. The results of data analysis obtained: a) The value of rcount=0.369>r(table(a=0.05,n=32))=0.349 and tcount=2.172 >t(table(a=0.05,dk=n -2=30))=2.042 shows that there is a positive and significant relationship between the Active Learning learning model and students' Christian Religious Education learning outcomes. b) Regression equation ? = 65.81 + 0.17X. c) The determination test revealed that the magnitude of the effect was 13.6%. d) Hypothesis testing obtained Fcount=4.575 > Ftable=1.62 then H0 is rejected and Ha is accepted. The research concluded that there was a positive and significant influence between the Active Learning learning model on the learning outcomes of Christian Religious Education for class VII students at SMP Negeri 3 Siborongborong for the 2023/2024 academic year.