Introduction to programming

This lesson focuses on introduction to programming. Interdisciplinary approaches reveal connections that single-subject study might miss.

An algorithm is a step-by-step procedure for solving a problem or accomplishing a task—it must be unambiguous, finite, and effective. Algorithms are the foundation of programming. Pseudocode is a plain-language description of an algorithm's steps, not formal code—it focuses on logic without syntax concerns. Flowcharts use shapes to diagram algorithms: ovals (start/end), rectangles (process steps), diamonds (decisions/branches), arrows (flow). Programming translates algorithms into a language computers understand. Programming languages range from low-level (close to machine code: C, Assembly) to high-level (human-readable: Python, JavaScript, Java). Good programmers break complex problems into smaller subproblems (decomposition), look for patterns, think abstractly (work with models, not details), and design algorithms before writing code. The "computational thinking" mindset is valuable across every discipline.

As you engage with this material, consider both the theoretical foundations and practical applications. Think critically about how this concept builds on prior knowledge and where you might apply it beyond the classroom.

Challenge yourself to go beyond memorization—seek to understand the "why" behind the processes and principles.