DEVELOPMENT OF E-MODUL BASED ON A PROBLEM BASED LEARNING MODEL TO IMPROVE PROBLEM SOLVING ABILITY AND APPRECIATION OF MATHEMATICS AT SMP DHARMA PANCASILA MEDAN

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INTRODUCTION
In an era of increasingly sophisticated technological development, the development of technology-based learning is to be increasingly utilized to create innovations that are interesting and enjoyable in the learning process.Curriculum frameworks in some countries include the cultivation of problem-solving skills as a key objective, emphasising the importance of these abilities (Sabaruddin, 2019:26).Ruseffendi (2006:341) asserts that problem-solving skills are crucial in mathematics, not only for those pursuing academic or Medan confirmed that the ability to solve mathematical problems of students in particular on SPLDV material can not be said well in classical terms.Nasution & Yerizon, (2019) said that children still lack sufficient educational resources to cultivate the ability to systematically tackle problems.Researchers are therefore interested in raising problem-solving skills as one of the mathematical skills that needs to be improved.
One of the important attitudes in mathematics is the attitude of appreciation for math.
In support of this, Sholihah and Mahmudi (2015: 177) also revealed that student success in a lesson depends heavily on their attitude to the lesson.The fact revealed that problem-solving skills and students' appreciation of mathematics are not optimum.However, It is hypothesised that students may enhance their learning outcomes, including their problemsolving skills and emotional state, as they go through mathematics courses.Therefore, education is crucial for bridging the disparities.An e-Module is a digital representation of a printed module that can be viewed and generated using certain software on a computer.(Maryam, Masykur, & Andriani, 2019).Like research (Wibowo & Pratiwi, 2018), learning with modules enables students to improve their learning activities optimally according to their level of ability so that students can be directed to focus their attention on problems and find alternatives in their resolution.In order to enhance students' problem-solving skills, the next e-modules should include issue-based learning.Senada devised a problem-based learning (PBL) paradigm to impart critical thinking skills and problem-solving abilities to students (Scolastika, et al., 2014).
The problem-based learning model, as described by Najwa and Sabariman (2021), is an educational approach that exposes students to various real-world problems The feasibility data analysis technique uses scores obtained from the Likert Scale.In this study, 4 scales were used with the aim of avoiding answers 3, neutral, or sufficient which tend to be chosen by respondents and assessors.If it is in the valid category (2,50 ≤   < 3,25), then the e-module is suitable for testing in the field after making improvements if there are constructive suggestions from the validator.
Teacher and student responses in this research are considered to meet the practical aspect if they have a student response value of  ≤ 2,50 (good or very good).The e-module The effectiveness of the e-module was analyzed from pretest and posttest learning result test data, as well as student appreciation questionnaires for mathematics.Individual completeness is seen from the scores obtained by each student.The success criteria that students must achieve is 75. the success criteria score.Classical completion will be achieved if the number of students who achieve the success criteria score is 80%.The N-Gain value is a comparison value between the pretest-posttest score difference and the maximum score-pretest score difference (Hake, 1998).The increase in competency is calculated using the g factor (N-Gain) formula as equation ( 1 The e-module meets the criteria for effectiveness in terms of students' appreciation of mathematics if it meets the criteria for effectiveness, namely the average score from the appreciation questionnaire is 55 <  ≤ 71,5 (high).

Value Interval
Category ,  <  ≤  Very High  <  ≤ ,  High ,  <  ≤  Low  <  ≤ ,  Very Low (Modification from Wulandari, 2019) Of E-Modul Based On A Problem Based Learning Model To Improve Problem Solving  Suharmita, Mulyono, Fauzi, Suharyanisa    professional involvement in the field, but also for their applicability in several disciplines and everyday situations.Polya (1973:5)  categorises problem-solving skills into four modified indicators: 1) comprehension of the issue, 2) formulation of a solution plan, 3) execution of the problemsolving process as per the plan, and 4) evaluation and revision of the technique and solution outcome.However, research indicates that students' mathematical problem-solving skills are still not meeting the expected standards.In Rambe's research (2020:176), the students performed poorly on the given tasks, especially in terms of the indicators that assessed their responses.FromCho & Kim's research, (2020)  found that students have difficulty in identifying and organizing the information needed to resolve the problem and students do not reevaluate the suitability of the final solution obtained.The results of a research interview with Mr. Rivan Ambiya, S.Pd as a mathematics teacher in the eighth grade of High School Dharma Pancasila . The objective is to foster the development of their problem-solving abilities and, at the same time, improve their ability to apply acquired knowledge in practical situations.However, the e-modules developed in the previous research have not developed e-modules through the problem based learning model and are not oriented to improve the ability to solve problems and mathematical appreciation.So, based on the background that has been outlined above, then the researchers are interested in doing research by developing e-Module based on problembased learning model to improve problem-solving ability and appreciation of mathematics.METHODS Subjects in this study are students of the eighth grade at SMP Dharma Pancasila Medan in the school year 2023/2024.The objective of this project is to construct e-modules that use the problem-based learning paradigm as a basis for educational materials.Research and development focuses on this particular field of study.The objective of research and development is to create and improve a product.The ADDIE development paradigm was used as the basis in this example.The model, according to its name, consists of five main phases, namely (A) analysis, (D) design, (d) development, (I) implementation, and (E) evaluation.Using this model, the researchers will develop an E-Module based on the PBL model.The aim of data analysis in this research is to find out the validity, practicality and effectiveness of emodules based on problem based learning.
developed is said to be practical if the average learning implementation is at least in the 'Well implemented' category (2,50 ≤   < 3,25). being