Вђњnumber Boxesвђќ Вђ“ Thinking Mathematically (2025-2026)

Identify which numbers are used most frequently in the sums (e.g., corners vs. edges).

Tell the participant, "Place the numbers 1 through 9 into these boxes so that the sum of each row, column, and diagonal is the same". The Constraint: All numbers must be used exactly once. The Goal: The sum must be 15. 2. Engaging in Mathematical Thinking (The "How-To") “Number Boxes” – Thinking Mathematically

The sum of all numbers 1–9 is 45. Since there are 3 rows, Identify which numbers are used most frequently in