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This study aims to determine the effect of learning using problem-based learning strategies on student learning outcomes on environmental change material at Teladan Batu Bara Madrasah Aliyah. This research is a type of quantitative research with a quasi-experimental design selected by Nonequavalent pretest posttest control group design. The research population was class X IPA Madrasah Akiyah Exemplary and the sample of this study was Class X IPA 1 with a total of 35 students as the experimental class, and X IPA 2 with a total of 35 students as the control class. The instrument in this study was in the form of a test in the form of multiple choice questions of 30 items. Data analysis of student learning outcomes using the t-test formula, also with the help of SPSS version 25 data processing. Data analysis of student learning outcomes with the results of calculating the relative learning outcomes shows that the experimental class using problem-based learning strategies is higher than the control class. The prerequisite test proved that the data were normally distributed and homogeneous. The results of simple linear regression test calculations show sig < 0.005, 0.000 problems < 0.05, this means that there is an influence from the problem- based learning system on student learning outcomes. The conclusions in this study explain that there is an effect of using problem-based learning strategies on student learning outcomes.

Strategy is a way or method that is chosen or it can also be interpreted as a way to achieve a goal in education. The definition of a learning strategy can be interpreted as a plan that contains a series of activities designed to achieve certain educational goals. The learning strategy includes specific learning approaches, models, methods and techniques. This research is a qualitative method, which is a method that aims to make a systematic, factual, accurate description, picture or painting of the properties and relationships between the phenomena investigated. In other words, descriptive research takes the problem or focuses on actual problems as they were at the time the research was carried out. What was collected was in the form of primary data and secondary data about teacher strategies in online learning, the techniques used in data collection were observations, interviews and documentation studies. Research leads to the methods used by teachers in online learning activities using platforms such as WhatsApp, email, and technology-based zoom.

The processed milk used usually comes from dairy cows which are very efficient at converting fodder in the form of concentrates and forages into milk which is of great benefit to human health. In recent years, the development of cafe milk made from dairy cow's milk in Indonesia has developed rapidly. But of course it raises problems related to competition. The way to win the competition is that restaurants must try to find out what consumers need and want, so that consumers decide to buy their products. So a SWOT analysis is needed, namely Strength, Weakness, Opportunity, and Threat that is right in facing the competition in the business world. So that the company gets a big advantage by knowing the SWOT analysis of its marketing strategy.

Based on observations made at SMA Negeri 1 Gunuang Omeh District, the problem found was the low interest in learning of students in PAI and BP subjects due to the large number of students who did not pay attention to the teacher's explanation, and the lack of use of learning models and media used in learning , one of which is the Problem Based Learning learning model. The role of the learning model is very important, because using visual media will be able to influence students' learning interests. The purpose of this study was to find out the use of the Problem Based Learning learning model in increasing students' learning interest in PAI and BP subjects on Da'wah Strategy and Islamic Development in Indonesia Class XII.MIPA at SMA Negeri 1 Gunuang Omeh District. This type of research is Classroom Action Research (PTK). The process of implementing PTK has four main components, namely planning, action, observation and reflection carried out in 3 cycles. The results of data analysis obtained the percentage of students' learning interest using the Problem Based Learning learning model of 44.83% in cycle I. The process of applying the Problem Based Learning learning model in PAI and BP learning increased in cycle II by 65.52% and 79.31 % in cycle III. So it can be concluded that the implementation of PAI and BP learning by using the Problem Based Learning learning model can increase students' learning interest.