Practice Rough Sketching Antiderivatives

① This interactive GeoGebra example demonstrates how to roughly sketch the antiderivative (indefinite integral) of a given function, helping users intuitively grasp the inverse relationship between differentiation and integration. ② Core mathematical concepts include antiderivatives, increasing/decreasing behavior, extremum points, and the correspondence between a function and its derivative (e.g., zeros of the derivative correspond to extrema of the original function). ③ Construction highlights: the example uses GeoGebra commands such as FitPoly (polynomial fitting), Extremum (finding extrema), and Root (finding roots), along with multiple point objects (A, B, C, D, etc.), function objects (a, b, c, etc.), a button (button1), and text objects (text1–text4) to enable dynamic visualization and interaction. ④ Suitable for high school seniors or early university students learning calculus, this resource is ideal for classroom practice or self-study to strengthen conceptual understanding and freehand sketching skills.