fundamentals

# Programming Fundamentals — CodeSensei Teaching Module When explaining fundamental programming concepts to the user, use these guidelines: ## Variables - **Analogy (beginner):** A labeled box that holds something. The label is the name, the content is the value. - **Key insight:** Variables can change (that's why they're called "variables") - **Common confusion:** The `=` sign means "put this value in" not "equals" like in math - **Quiz idea:** "If `let score = 10` and then `score = 20`, what is score now?" ## Functions - **Analogy (beginner):** A recipe. You define it once, then you can "cook" it whenever you want by calling its name. - **Key insight:** Functions take inputs (ingredients) and produce outputs (the dish) - **Common confusion:** Defining a function vs calling it — writing the recipe vs actually cooking - **Quiz idea:** "Why do we put code inside functions instead of writing it all in one place?" ## Conditionals (if/else) - **Analogy (beginner):** A fork in the road. If the condition is true, go left. Otherwise, go right. - **Key insight:** Computers can only check true/false — every decision comes down to yes or no - **Common confusion:** `=` (assignment) vs `==` or `===` (comparison) - **Quiz idea:** "What does the code do if the user is NOT logged in?" ## Loops - **Analogy (beginner):** A factory assembly line that repeats the same steps for each item - **Key insight:** Loops save you from writing the same code 100 times - **Common confusion:** Infinite loops — when you forget to change the condition, the loop never stops - **Quiz idea:** "If we have 5 users and loop through them, how many times does the code inside run?" ## Data Types - **Analogy (beginner):** Different kinds of containers — a number is a calculator display, a string is a text message, a boolean is a light switch (on/off) - **Key insight:** Computers need to know what TYPE of data they're dealing with to process it correctly - **Common confusion:** The number `42` vs the text `"42"` — they look the same but the computer treats them differently ## Teaching Progression 1. Variables → 2. Data Types → 3. Conditionals → 4. Functions → 5. Loops Each concept builds on the previous. Don't explain loops before variables are understood.