World population conditions are the main focus in understanding global social and economic dynamics. This article reviews trends in world population in the last five years, taking into account population growth and the factors that influence it. Apart from that, the analysis also focused on the 10 countries with the largest population in 2023. An investigation was carried out into the causes of the high population in these countries and the resulting consequences, both from a social, economic and environmental perspective. By exploring the latest data and information, this article aims to provide a comprehensive picture of global population dynamics and its implications for the future.
 

The problem-based education model begins with posing a problem or posing a problem, focusing on disciplinary relationships, investigation, group collaboration, as well as creating work, demonstrating and solving the given case. This problem-based education is student-centered, where teachers only share a little data and students who want to be more active in solving problems. This problem-based education uses real (authentic) problems that are unstructured and open-ended as a context for students to improve their problem-solving and critical thinking skills, and at the same time build new knowledge. In contrast to conventional education where real problems are used as the implementation of concepts, problem-based education makes real problems a factor in students' learning process before they understand formal concepts. Keywords: Education, Based, Problems.

. Indonesia's role in the G20 has shown increasing significance, especially in fighting for the interests of developing countries and promoting an inclusive development agenda. This journal analyzes Indonesia's contribution to the G20, including policy initiatives, economic diplomacy, as well as efforts on global issues such as climate change, global health, and financial stability. This research found that Indonesia not only acts as an active member but also as a mediator capable of bridging the interests of developed and developing countries. In the context of climate change, Indonesia has actively promoted global commitments to reduce emissions and protect the environment, while in global health issues, Indonesia has contributed to efforts to overcome pandemics and improve the global health system. In the field of financial stability, Indonesia has participated in discussions regarding reform of the global financial architecture to create a fairer and more stable system. This indicates that Indonesia's role in the G20 not only contributes to strengthening Indonesia's position on the global stage, but also enriches the dynamics of multilateral cooperation in the forum.