Broken Calculator - Simplified but Not Simple

① This interactive GeoGebra example, titled 'Broken Calculator', demonstrates how arithmetic expressions can be explored under restricted inputs, showing how different numbers and operations affect computed results in a dynamic visual environment. ② Core mathematical concepts include arithmetic operations, means (averages), median lines, cubes, tangent functions, and differential calculus ideas, linking numerical computation with rates of change and geometric interpretations. ③ Construction details: Based on the summary, the example uses GeoGebra commands such as Polygon and Textfield, creating multiple text objects (TextB, TextT, etc.) and variables a through o, along with a button (button1), input boxes (InputBox1, InputBox2), and result texts (resultA, resultS, resultM, resultD) for interactive calculation. Objects like A, B, C, D and q1 may serve geometric or data-display purposes. ④ Suitable for upper secondary to early university students, this example is ideal for math lab sessions or inquiry-based learning, helping learners grasp intuitive connections between arithmetic and calculus concepts while practicing dynamic mathematical modeling and verification.