Kemampuan berpikir kreatif menjadi salah satu aspek kognitif yang harus dimiliki siswa. Kemampuan bepikir kreatif dibutuhkan ketika seseorang menghadapi masalah atau tantangan yang tidak biasa. Saat ini telah banyak berkembang berbagai pendekatan pembelajaran yang dapat digunakan untuk menciptakan kondisi belajar yang ideal dalam rangka mencapai tujuan pembelajaran, termasuk untuk meningkatkan kemampuan berpikir kreatif matematis siswa. Salah satu strategi yaitu menggunakan LKS Problem Based Learning (PBL). Tujuan penelitian ini adalah untuk mendeskripsikan keefektifan LKS PBL ditinjau dari kemampuan berpikir kreatif matematis. Penelitian ini merupakan penelitian eksperimen semu. Kelas kontrol menggunakan pendekatan konvensional. Subjek penelitian yaitu siswa SMP Darussalam Islamic Boarding School, Wonosobo. Penelitian dilaksanakan pada Maret 2021. Instrumen yang digunakan dalam penelitian ini yaitu instrumen tes. Analisis data yang digunakan yaitu analisis deskriptif dan inferensial. Hasil penelitian menunjukkan bahwa penggunaan LKS Problem Based Learning (PBL) lebih efektif ditinjau dari kemampuan berpikir kreatif matematis dibandingkan dengan pendekatan konvensional.

The objectives of this study aim to test and analyze (1) differences in the effect of learning models on students' mathematics learning achievement; (2) differences in the effect of students' self-confidence on students' mathematics learning achievement; and (3) the interaction between learning models and students' self-confidence towards students' mathematics learning achievement. In this study, the writer used quantitative research with a quasi-experimental design. The population and sample in this study were class VIII students of SMP N 2 Baki, and the sampling technique used was cluster random sampling. Data collection techniques used include questionnaires, tes, and documentation. The techniques of data analysis employ a two-way analysis of variance with cells not equal with α = 5% to obtain the results: (1) There is no difference in the effect of the learning model on students' mathematics learning achievement; (2) There are differences in the effect of students' self-confidence on students' mathematics learning achievement; and (3) There is no interaction between the learning model and students' self-confidence towards students' mathematics learning achievement.

One of the challenges experienced by every university is to improve the quality of the tridharma of higher education, where the most important component in improving the quality is the lecturer. Pamulang University as one of the universities with the largest number of lecturers in Indonesia, namely 2024 lecturers, of course requires many aspects to improve its quality in order to realize the vision it wants to achieve. This study aims to produce a model of strengthening creativity in the form of a constellation model of the influence between variables and their mathematical model. From the mathematical model, it can be derived into a research hypothesis. The research begins by interviewing informants who are considered competent in providing the expected answers for further data reduction, data codification, data analysis, and conclusion drawing. The research was conducted at Pamulang University from June 2020 to February 2021. From the research that has been carried out, it is concluded that there are variables that are thought to have a positive and dominant influence on creativity, namely professional commitment, job satisfaction, and achievement motivation, while the intervening variables are job satisfaction and achievement motivation

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