Delta-Phi: Jurnal Pendidikan Matematika, in its Vol. 1 No. 1 2023 edition is published by CV Bimbingan Belajar Assyfa and presents a collection of thought-provoking articles about innovation and problems in mathematics learning. With 15 articles written by 56 authors, this journal presents insights from various affiliations, covering 32 institutions from 8 countries such as Indonesia, India, Pakistan, Rwanda, Brazil, Ukraine, Bangladesh, and Turkey. The central theme of this edition centers on the application of innovative methods in mathematics education, raising current issues such as gender differences, integration of Islamic values, differential learning methods, and the use of digital technology in teaching. The advantages and uniqueness of this edition lie in the interdisciplinary approach that links mathematics education with career readiness, increasing learning motivation, and Islamically integrated mathematical communication skills. These articles significantly contribute to Indonesia's curriculum by offering practical solutions to improve student learning outcomes and overcome challenges in mathematics teaching. Through in-depth discussions and relevant case studies, this edition serves as a platform to share knowledge and best practices in mathematics education, encouraging continuous improvement and innovation in education policy in Indonesia. Overall, this journal serves as a valuable source of information for educators and researchers and as an inspiration for developing a more inclusive and practical curriculum in facing the challenges of the 21st century.