Multiples Jump: Three Blank Circles Demo

① This example demonstrates an animation where multiples jump across three blank circles, visualizing the distribution and periodicity of integer multiples. ② Core mathematical concepts include multiples, arithmetic sequences, modular arithmetic, and random selection. ③ Construction highlights: Sequence generates the multiples list, RandomElement picks random items, Point and Circle create the geometric objects, CurveCartesian draws auxiliary curves, Corner positions UI components, and buttons, a timer (semitimer), and a speed slider provide interactive control. ④ Suitable for upper‑primary to lower‑secondary mathematics lessons, as well as for number‑sense practice and introductory computational thinking.