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Education is a conscious effort to change character, morals, morals and also fosters creativity in thinking. Creative in thinking is something that is very urgent in life. Education has value to be able to solve problems precisely and quickly. The purpose of this study was to determine the extent to which the Collaborative Role of Creative Problem Solving and the Quiz Team Method played a role in increasing creative thinking. This study uses a qualitative descriptive analytical approach, which is one of the approaches used in qualitative research to understand phenomena in detail and depth. Researchers collect data through interview techniques, observation, case studies, or document analysis. Researchers used the class action research method (CAR). CAR involves iterative cycles of planning, action, observation, and reflection in order to achieve continuous improvement in student learning and achievement. The results showed that learning Creative Problem Solving (CPS) and quiz teams can improve students' creative thinking and this method is very good to use because students feel happy and not bored.

Mathematics is one of the subjects taught at all levels from basic education to higher education, which has a significant role in preparing students to have the ability to think logically, analytically, systematically, critically and creatively, as well as have the ability to work together. One of the activities in learning mathematics at school is through problem solving. Problem solving aims to see students' understanding of a material. Mathematical problem solving ability is a very important part of learning mathematics. However, in reality, the problem-solving ability of junior high school students' mathematics is still very low. From these problems, then one of the lessons that can improve the ability to solve mathematical problems is Problem Solving learning. One of the factors that influence differences in problem solving ability is learning style. Learning styles have a close relationship and influence on the learning process in order to achieve learning goals. With students knowing their learning style, learning Problem Solving can be done easily. The subjects of this study were students of class VIII A MTs Plus Sunan Drajat Kedungsantren Bojonegoro. The purpose of this study was to determine the effectiveness of Problem Solving learning on mathematics learning outcomes when viewed from students' learning styles. The type of research used is quantitative research with the One Group Pretest-Posttest Design. The results showed that testing the data on mathematics learning outcomes with the Paired Sample T-Test stated that the t_count value was -9.726. The t_count value is negative, because the pretest average value is lower than the posttest average value. In this case, the t_count value can be positive so that it becomes 9.726. Meanwhile, the value of t_table with α = 0.05 and degrees of freedom (dk=n-1) with 24 students is 1.714. Then it can be seen that t_count > t_table, then H0 is rejected and Ha is accepted, meaning that there is a significant difference. So it can be concluded that the application of the Problem Solving learning model is quite effectively carried out in the teaching and learning process for class VIII A students of MTs Plus Sunan Drajat Kedungsantren on the material of geometric shapes on the flat sides of cubes and blocks.  

    This study aims to describe students' ability to solve open-ended problems based on aspects of fluency, flexibility, and novelty. This type of research is qualitative. The subject taking technique in this study was purposive. The instruments that the researchers used were open-ended tests and interview guides. The research subjects were 3 students of SMP Negeri 2 Puring class VIII for the 2021/2022 academic year who had high abilities. The data collection technique used is in the form of test sheets in the form of circle questions, field notes, interviews, and documentation. The data analysis technique used is the analytical technique from Miles & Huberman which includes three activities, namely data reduction, data presentation, and drawing conclusions. The results of this study indicate that students with high abilities have a level of creative thinking 3 (creative). Students with high abilities in solving circle problems can fulfill two of the three indicators that the researcher used. The indicators are fluency and flexibility. Fluency indicators are shown by students being able to answer questions fluently and correctly. The indicator of flexibility (flexibility) is shown by students being able to answer questions with more than one way of solving.

This study aims to improve students' ability to write poetry creatively through the discovery-inquiry method for class VII students of SMPN 2 Marioriwawo. This research is a class action research (PTK) meaning class-based research in which the procedure is carried out with various actions (action research). Classroom action research can be defined as a part in the form of a reflective study by action actors, which is carried out to increase the rational ability of the actions taken and improve the conditions in which the learning practices are carried out. This classroom action research is intended to develop new skills or approaches to solving problems with direct application in schools. Classroom action research is also carried out thematically by following certain procedures or steps. This study uses a class action research design (CAR) with two cycles, namely the action process in cycle I and cycle II. In the first cycle aims to determine students' skills in creative writing poetry. While the results of the process research held in cycle II aimed to determine the level of students' abilities in writing poetry after making improvements in student teaching and learning activities. Cycle I aims to determine students' poetry creative writing skills, from cycle I it is used as a reflection to carry out cycle II. While the second cycle aims to find out the increase in students' poetry creative writing skills through the Discovery-Inquiry method after making improvements to the implementation of the teaching and learning process based on cycle I. Students' poetry creative writing test scores in cycle I reached an average of 56% of students in class or the class doesn't understand about creative poetry writing. The average results of cycle II tests reached an average of 75% for the number of students in the class or in the good category. The students' poetry test results from Cycle I to Cycle II increased by 19%. This increase was caused by the adaptability of students in cycle II with the discovery-inquiry learning method used by researchers.