As a provincial ICT trainer, I've had the privilege of observing the significant impact these skills can have on students' lives. ICT is not just a tool; it is a catalyst for learning, innovation and empowerment. Through this book, we hope to offer every student the opportunity not only to acquire technical knowledge, but also to develop critical and creative thinking in the face of digital challenges. This manual has been developed in line with the DAS (Domaine d'apprentissage des sciences) reform, which aims to improve educational quality within the Congolese school system. We have worked diligently to design accessible, engaging and relevant content that meets the specific needs of learners while respecting the cultural and social values specific to our country. We firmly believe that every student deserves equitable access to digital resources, so this book is also an invitation to embrace change: one where everyone can explore the limitless potential offered by modern technologies.