This teaching resource for senior high school students introduces the core principles of algorithmic thinking and provides a practical approach to visualizing processes with structure charts (Nassi-Shneiderman diagrams). Students gain experience in analyzing problems, designing solutions, and implementing algorithms in programming languages.

The material combines clear explanations, real-world examples, and creative group activities. Learners practice designing algorithms for tasks such as number analysis, decision-making, and iterative processes. By translating their structure charts into executable code, they acquire essential programming skills while strengthening their ability to think logically and systematically.

Teachers benefit from a comprehensive toolkit: lesson plans, worksheets, expectation grids, and ready-made assessments. Collaborative learning strategies, including role-based group puzzles and reflective discussions, ensure that students not only master technical concepts but also build teamwork and critical communication skills.

This resource is a powerful bridge between theory and practice, preparing students for advanced studies in computer science and for the challenges of a digital society.