Penelitian ini bertujuan untuk mendeskripsikan aktivitas belajar dan meningkatkan hasil belajar Ilmu Pengetahuan Alam dan Sosial (IPAS) pada siswa kelas V dengan menggunakan model Problem Based Learning (PBL) berbasis audiovisual. Metode yang digunakan dalam penelitian ini adalah penelitian tindakan kelas (PTK) dengan subjek penelitian sebanyak 26 siswa. Teknik pengumpulan data dilakukan melalui observasi dan tes, sementara analisis data didasarkan pada hasil siklus selama proses pembelajaran. Hasil penelitian menunjukkan bahwa penggunaan model PBL berbasis audiovisual secara signifikan meningkatkan aktivitas belajar siswa. Aktivitas belajar siswa pada siklus I memiliki rata-rata 2,7 (kategori cukup baik), dan meningkat menjadi 3,8 (kategori baik) pada siklus II. Aktivitas guru juga menunjukkan peningkatan dari rata-rata 2,5 (kategori cukup) pada siklus I menjadi 3,7 (kategori baik) pada siklus II. Selain itu, hasil belajar IPAS siswa juga mengalami peningkatan yang signifikan. Pada pra tindakan, ketuntasan klasikal siswa hanya mencapai 51% dengan nilai rata-rata 66. Pada siklus I, ketuntasan klasikal meningkat menjadi 65% dengan nilai rata-rata 75, dan pada siklus II mencapai 95% dengan nilai rata-rata 90. Penelitian ini menyimpulkan bahwa model PBL berbasis audiovisual efektif dalam meningkatkan aktivitas belajar dan hasil belajar IPAS pada siswa kelas V.

The purpose of this article is to find out the marketing strategies implemented by PT Tomoe Valve Batam in reaching its business to various countries. As a branch in Indonesia located in Batam City, marketing is implemented efficiently and well in marketing products. International marketing has been implemented through social media platforms so that this makes it easier and increases the company's sales targets. Marketing strategy is one of the effective product introduction tactics.

This article aims to analyze the role and financial performance of Bank Syariah Indonesia in recent years, focusing on metrics such as Return On Asset (ROA), Return On Equity (ROE), Net Interest Margin (NIM), and Operating Expenses to Operating Income Ratio (BOPO). As an Islamic banking institution, Bank Syariah Indonesia plays a crucial role in mobilizing and channeling funds in accordance with Islamic principles. In the face of the challenges posed by the COVID-19 pandemic, this article highlights the positive growth of Islamic banking assets, indicating a better performance compared to conventional banks. Financial performance analysis, utilizing indicators such as ROA, ROE, NIM, and BOPO, provides insights into the efficiency of asset and capital utilization by Bank Syariah Indonesia. Additionally, the research evaluates the bank's efforts in managing operational expenses to support sustainable operations. The findings of this research offer a comprehensive understanding of the positive contributions of Bank Syariah Indonesia to the Indonesian economy and underscore potential growth in the future. The implementation of Islamic principles in banking operations serves as a foundation that can be adopted by other banking institutions to achieve economic sustainability in alignment with Islamic financial values.

Stock split is a corporate action taken by a company to increase stock liquidity. There is a phenomenon of companies that failed and succeed after carrying out stock split actions. This study aims to examine the company's financial performance and market performance against the success of the stock price after the stock split. The sample of this study is companies listed on the Indonesia Stock Exchange and conducted a stock split in the period 2018 – 2021, using purposive sampling and obtained 41 companies. For the benefit of hypothesis testing using multiple linear regression analysis techniques. The results of the study that financial performance and market performance had no effect on the success of the stock price after the stock split. The results of this study imply that the stock split has not been able to be used as a signaling instrument about the company's positive prospects.