Before your students download a Python script or use an online sentiment tool, they need to understand the logic 'under the hood' to effectively defend their method. This worksheet acts as a manual validity check.

It forces students to manually code a high-complexity text (JFK’s inaugural) to see exactly where automated algorithms fail—specifically with sarcasm, negation, and historical context. This is a powerful scaffolding activity that directly helps students write their Limitations and Data Analysis sections. It ensures they aren't just pushing buttons, but are critical scholars evaluating the reliability of their tools.