🗺️ Grocery Budget Investigation Plan

Students complete a structured Methodology Planning Organizer for their research question (e.g., “How does rounding to the nearest ten or hundred change our grocery budget estimate?”). They select a comparative investigation method (exact total vs. rounded totals), explain why it fits their question, identify variables (exact prices, rounded prices to tens, rounded prices to hundreds, total difference), and outline a step-by-step procedure for collecting 10–15 grocery prices from a provided list. Students specify how they will show rounding (number lines or digit analysis), how they will check accuracy, and how they will organize data in tables for later graphing.