Dynamic Visualization of Limits of Integration

① This GeoGebra example dynamically demonstrates how the area under a curve changes as the limits of integration are adjusted, making the concept of 'limits of integration' visually intuitive. ② It covers core calculus concepts: definite integrals, the effect of upper and lower bounds on the integral value, and the geometric interpretation of the area between a function graph and the x-axis. ③ Construction highlights: based on the summary, the example uses the Segment command, defines multiple points (A, B, C, D, E, F, G, H, I, J, K, L) and functions (f, g, h, i, j), allowing users to drag points or sliders to change the integration bounds and update the shaded region in real time. ④ Suitable for high school seniors or early university students learning calculus, and also useful for teachers as a classroom demonstration tool to bridge the gap between Riemann sums and definite integrals.