Assess students' ability to plan a rectangular school vegetable bed using given measurements and basic arithmetic: calculate bed area from length and width; use plant spacing to determine how many plants fit (rows × columns and total), round to whole plants; compute weekly water needs from a per-plant water rate and convert units as needed (cm↔m, mL↔L). Problems will require addition, subtraction, multiplication, division, simple unit conversion, and multi-step reasoning appropriate for advanced Grade 3–5 learners.